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1. Which of the following is a scalar quantity?
ⓐ. Displacement
ⓑ. Velocity
ⓒ. Speed
ⓓ. Acceleration
Correct Answer: Speed
Explanation: Speed is a scalar quantity as it only has magnitude and no direction. Displacement, velocity, and acceleration are vector quantities, meaning they have both magnitude and direction.
2. What is the SI unit of displacement?
ⓐ. Meter
ⓑ. Kilometer
ⓒ. Centimeter
ⓓ. Millimeter
Correct Answer: Meter
Explanation: Displacement, being a measure of the shortest distance between the initial and final positions of a point, is measured in meters in the International System of Units (SI).
3. If a car travels 60 kilometers in 2 hours, what is its average speed?
ⓐ. 20 km/h
ⓑ. 30 km/h
ⓒ. 60 km/h
ⓓ. 120 km/h
Correct Answer: 30 km/h
Explanation: Average speed is calculated as total distance divided by total time. So, 60 km / 2 h = 30 km/h.
4. Which of the following represents uniform motion?
ⓐ. A car increasing its speed from 20 km/h to 40 km/h
ⓑ. A car traveling at a constant speed of 60 km/h
ⓒ. A car decreasing its speed from 40 km/h to 20 km/h
ⓓ. A car traveling in a circular path
Correct Answer: A car traveling at a constant speed of 60 km/h
Explanation: Uniform motion means traveling with constant speed in a straight line. A constant speed of 60 km/h fits this description.
5. In which scenario is acceleration zero?
ⓐ. A car moving with constant velocity
ⓑ. A car starting from rest
ⓒ. A car stopping at a red light
ⓓ. A car speeding up to overtake another car
Correct Answer: A car moving with constant velocity
Explanation: Acceleration is the rate of change of velocity. If a car is moving with constant velocity, its velocity is not changing, hence the acceleration is zero.
6. What does the slope of a displacement-time graph represent?
ⓐ. Acceleration
ⓑ. Speed
ⓒ. Velocity
ⓓ. Distance
Correct Answer: Velocity
Explanation: The slope of a displacement-time graph represents velocity, which is the rate of change of displacement with respect to time.
7. A body moving in a straight line covers equal distances in equal intervals of time. What type of motion is this?
ⓐ. Uniform motion
ⓑ. Non-uniform motion
ⓒ. Circular motion
ⓓ. Vibratory motion
Correct Answer: Uniform motion
Explanation: In uniform motion, a body covers equal distances in equal intervals of time, indicating a constant speed and direction.
8. What is the acceleration of a body moving with a constant velocity of 10 m/s?
ⓐ. 0 m/s²
ⓑ. 1 m/s²
ⓒ. 10 m/s²
ⓓ. 100 m/s²
Correct Answer: 0 m/s²
Explanation: If a body is moving with a constant velocity, its acceleration is zero because there is no change in velocity over time.
9. A car accelerates from rest at a constant rate of 2 m/s². What is its velocity after 5 seconds?
ⓐ. 2 m/s
ⓑ. 5 m/s
ⓒ. 10 m/s
ⓓ. 20 m/s
Correct Answer: 10 m/s
Explanation: The velocity of the car can be calculated using the formula v = u + at. Here, u (initial velocity) = 0, a (acceleration) = 2 m/s², and t (time) = 5 s. So, v = 0 + (2 × 5) = 10 m/s.
10. A train travels at 90 km/h for 2 hours and then at 60 km/h for the next 3 hours. What is the average speed of the train?
ⓐ. 70 km/h
ⓑ. 72 km/h
ⓒ. 75 km/h
ⓓ. 78 km/h
Correct Answer: 72 km/h
Explanation: Total distance covered = (90 km/h × 2 h) + (60 km/h × 3 h) = 180 km + 180 km = 360 km. Total time taken = 2 h + 3 h = 5 h. Average speed = Total distance / Total time = 360 km / 5 h = 72 km/h.
11. What is the definition of motion in physics?
ⓐ. The change in position of an object over time
ⓑ. The force acting on an object
ⓒ. The energy possessed by an object
ⓓ. The mass of an object
Correct Answer: The change in position of an object over time
Explanation: Motion is defined as the change in position of an object with respect to time. It involves the movement of the object from one place to another.
12. Which of the following quantities is necessary to describe the motion of an object?
ⓐ. Mass and volume
ⓑ. Position and time
ⓒ. Energy and power
ⓓ. Temperature and pressure
Correct Answer: Position and time
Explanation: To describe the motion of an object, we need to know its position at different times. This allows us to determine how the object is moving.
13. Which of the following statements is true about rest and motion?
ⓐ. An object can be in motion and rest simultaneously
ⓑ. Rest and motion are absolute concepts
ⓒ. Rest and motion are relative concepts
ⓓ. Rest is a form of motion
Correct Answer: Rest and motion are relative concepts
Explanation: Rest and motion are relative concepts because an object’s state of rest or motion depends on the observer’s frame of reference.
14. What is meant by the term ‘reference frame’ in the context of motion?
ⓐ. A coordinate system used to describe the position and motion of an object
ⓑ. The force acting on a moving object
ⓒ. The energy possessed by an object in motion
ⓓ. The mass of an object in motion
Correct Answer: A coordinate system used to describe the position and motion of an object
Explanation: A reference frame is a coordinate system or viewpoint that is used to describe the position, orientation, and motion of an object. It provides a basis for measuring the motion of objects.
15. In which type of motion does an object move along a straight path?
ⓐ. Rotational motion
ⓑ. Circular motion
ⓒ. Vibrational motion
ⓓ. Rectilinear motion
Correct Answer: Rectilinear motion
Explanation: Rectilinear motion is the type of motion in which an object moves along a straight path. It is also known as linear motion.
16. What type of motion does an object exhibit if it moves along a curved path?
ⓐ. Linear motion
ⓑ. Circular motion
ⓒ. Translational motion
ⓓ. Projectile motion
Correct Answer: Projectile motion
Explanation: When an object moves along a curved path under the influence of gravity, it exhibits projectile motion. This type of motion is common in objects that are thrown or launched into the air.
17. Which physical quantity is used to describe how fast an object is moving?
ⓐ. Velocity
ⓑ. Displacement
ⓒ. Speed
ⓓ. Acceleration
Correct Answer: Speed
Explanation: Speed is the physical quantity used to describe how fast an object is moving. It is the rate at which an object covers distance and is a scalar quantity.
18. How is velocity different from speed?
ⓐ. Velocity includes direction, while speed does not
ⓑ. Speed includes direction, while velocity does not
ⓒ. Speed is a vector quantity, while velocity is a scalar quantity
ⓓ. Velocity and speed are the same
Correct Answer: Velocity includes direction, while speed does not
Explanation: Velocity is a vector quantity that includes both magnitude (speed) and direction, whereas speed is a scalar quantity that only includes magnitude.
19. What is the term for the rate of change of velocity of an object?
ⓐ. Speed
ⓑ. Displacement
ⓒ. Acceleration
ⓓ. Momentum
Correct Answer: Acceleration
Explanation: Acceleration is the term used to describe the rate of change of velocity of an object. It indicates how quickly the velocity of an object is changing over time.
20. If an object is moving with a constant speed in a straight line, what can be said about its acceleration?
ⓐ. The acceleration is zero
ⓑ. The acceleration is increasing
ⓒ. The acceleration is decreasing
ⓓ. The acceleration is constant and non-zero
Correct Answer: The acceleration is zero
Explanation: If an object is moving with a constant speed in a straight line, its velocity is not changing, so its acceleration is zero. Acceleration occurs only when there is a change in the velocity.
21. Which type of motion involves an object moving from one location to another without rotating?
ⓐ. Rotational motion
ⓑ. Oscillatory motion
ⓒ. Translational motion
ⓓ. Circular motion
Correct Answer: Translational motion
Explanation: Translational motion occurs when an object moves from one location to another without rotating. This type of motion is characterized by a change in the position of the object.
22. What type of motion does a spinning top exhibit?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Rectilinear motion
Correct Answer: Rotational motion
Explanation: A spinning top exhibits rotational motion as it spins around its own axis. Rotational motion involves an object rotating around a fixed point or axis.
23. Which of the following is an example of oscillatory motion?
ⓐ. A car moving on a straight road
ⓑ. A planet orbiting the sun
ⓒ. A pendulum swinging back and forth
ⓓ. A wheel rotating on its axle
Correct Answer: A pendulum swinging back and forth
Explanation: Oscillatory motion occurs when an object moves back and forth around a fixed point. A pendulum swinging back and forth is a classic example of oscillatory motion.
24. Which type of motion does the Earth exhibit as it orbits around the Sun?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Circular motion
Correct Answer: Circular motion
Explanation: As the Earth orbits around the Sun, it exhibits circular motion. This is because its path forms a nearly circular trajectory around the Sun.
25. What type of motion is observed in the movement of a ceiling fan?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Linear motion
Correct Answer: Rotational motion
Explanation: A ceiling fan exhibits rotational motion as its blades rotate around the central axis of the fan. This type of motion is characterized by an object rotating around a fixed point or axis.
26. Which of the following objects exhibits translational motion?
ⓐ. A spinning wheel
ⓑ. A swinging pendulum
ⓒ. A car driving down the street
ⓓ. A vibrating string
Correct Answer: A car driving down the street
Explanation: A car driving down the street exhibits translational motion, as it moves from one location to another without rotating around an axis.
27. What is the term used to describe repetitive motion back and forth around a central position?
ⓐ. Rotational motion
ⓑ. Translational motion
ⓒ. Oscillatory motion
ⓓ. Uniform motion
Correct Answer: Oscillatory motion
Explanation: Oscillatory motion describes repetitive motion back and forth around a central position, such as the motion of a pendulum or a vibrating string.
28. Which type of motion is exhibited by a child on a swing?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Circular motion
Correct Answer: Oscillatory motion
Explanation: A child on a swing exhibits oscillatory motion, as the swing moves back and forth around a central point.
29. What type of motion does a Ferris wheel exhibit as it rotates around its central axis?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Linear motion
Correct Answer: Rotational motion
Explanation: A Ferris wheel exhibits rotational motion as it rotates around its central axis, allowing the seats to move in a circular path.
30. Which type of motion is exhibited by the vibration of a guitar string when plucked?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Circular motion
Correct Answer: Oscillatory motion
Explanation: The vibration of a guitar string when plucked is an example of oscillatory motion, as the string moves back and forth around its resting position.
31. Which of the following is an example of translational motion?
ⓐ. A spinning ballerina
ⓑ. A vibrating tuning fork
ⓒ. A train moving along a track
ⓓ. A rotating merry-go-round
Correct Answer: A train moving along a track
Explanation: A train moving along a track exhibits translational motion because it changes its position from one point to another along the track without rotating around its own axis.
32. What type of motion is shown by a gymnast performing flips and twists in the air?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Uniform motion
Correct Answer: Rotational motion
Explanation: When a gymnast performs flips and twists in the air, they are rotating around their center of mass, demonstrating rotational motion.
33. A spring-mass system exhibits which type of motion when displaced from its equilibrium position and released?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Circular motion
Correct Answer: Oscillatory motion
Explanation: A spring-mass system exhibits oscillatory motion when displaced from its equilibrium position and released, as it moves back and forth around the equilibrium point.
34. Which of the following describes the motion of the hands of a clock?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Linear motion
Correct Answer: Rotational motion
Explanation: The hands of a clock exhibit rotational motion as they rotate around the central pivot point of the clock.
35. What type of motion does a grandfather clock’s pendulum exhibit?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Circular motion
Correct Answer: Oscillatory motion
Explanation: A grandfather clock’s pendulum exhibits oscillatory motion as it swings back and forth around its resting position.
36. A particle moving in a circular path with a constant speed is undergoing which type of motion?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Uniform circular motion
Correct Answer: Uniform circular motion
Explanation: A particle moving in a circular path with a constant speed is undergoing uniform circular motion, characterized by constant speed along a circular trajectory.
37. Which type of motion is demonstrated by an electric motor’s rotor?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Vibrational motion
Correct Answer: Rotational motion
Explanation: The rotor of an electric motor exhibits rotational motion as it spins around its axis to convert electrical energy into mechanical energy.
38. What type of motion is depicted by the movement of a child rocking in a rocking chair?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Circular motion
Correct Answer: Oscillatory motion
Explanation: A child rocking in a rocking chair exhibits oscillatory motion as the chair moves back and forth around a central pivot point.
39. A record player’s turntable exhibits which type of motion?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Linear motion
Correct Answer: Rotational motion
Explanation: A record player’s turntable exhibits rotational motion as it spins the record around a central axis, allowing the needle to play the music.
40. Which of the following best describes the motion of a piston in an internal combustion engine?
ⓐ. Translational motion
ⓑ. Rotational motion
ⓒ. Oscillatory motion
ⓓ. Circular motion
Correct Answer: Translational motion
Explanation: The piston in an internal combustion engine exhibits translational motion as it moves up and down in a straight line within the cylinder.
41. What is a frame of reference?
ⓐ. A coordinate system used to specify the position and motion of objects
ⓑ. A unit of measurement for distance
ⓒ. The point at which an object starts moving
ⓓ. A device used to measure time
Correct Answer: A coordinate system used to specify the position and motion of objects
Explanation: A frame of reference is a coordinate system or viewpoint that is used to measure and describe the position, orientation, and motion of objects.
42. In physics, why is the concept of a frame of reference important?
ⓐ. It helps determine the color of an object
ⓑ. It allows for the measurement of motion relative to a specific point
ⓒ. It determines the mass of an object
ⓓ. It is used to measure the temperature of an object
Correct Answer: It allows for the measurement of motion relative to a specific point
Explanation: The concept of a frame of reference is important because it provides a context for measuring and describing the motion of objects relative to a specific point or coordinate system.
43. Which of the following is an example of an inertial frame of reference?
ⓐ. A car accelerating down a road
ⓑ. A rotating merry-go-round
ⓒ. A stationary train platform
ⓓ. An elevator moving upwards with constant speed
Correct Answer: A stationary train platform
Explanation: An inertial frame of reference is one in which objects are either at rest or move at constant velocity. A stationary train platform is an example of an inertial frame of reference.
44. Which statement is true about non-inertial frames of reference?
ⓐ. They are frames of reference that are accelerating
ⓑ. They are always stationary
ⓒ. They do not follow Newton’s laws of motion
ⓓ. They are frames of reference that move with a constant velocity
Correct Answer: They are frames of reference that are accelerating
Explanation: Non-inertial frames of reference are those that are accelerating or rotating. In these frames, fictitious forces, such as centrifugal and Coriolis forces, need to be considered.
45. Which of the following is a non-inertial frame of reference?
ⓐ. A car moving at a constant speed on a straight road
ⓑ. A satellite orbiting the Earth
ⓒ. An elevator moving upwards with constant acceleration
ⓓ. A person standing still on the ground
Correct Answer: An elevator moving upwards with constant acceleration
Explanation: An elevator moving with constant acceleration is an example of a non-inertial frame of reference because it involves acceleration.
46. How does the choice of frame of reference affect the description of motion?
ⓐ. It changes the color of objects
ⓑ. It affects the perceived speed and direction of objects
ⓒ. It alters the mass of objects
ⓓ. It has no effect on the description of motion
Correct Answer: It affects the perceived speed and direction of objects
Explanation: The choice of frame of reference affects the description of motion by changing how the speed and direction of objects are perceived relative to the observer’s viewpoint.
47. Which of the following is true for an object in an inertial frame of reference?
ⓐ. It experiences a constant force
ⓑ. It can only be at rest
ⓒ. It can only move in a circular path
ⓓ. It obeys Newton’s first law of motion
Correct Answer: It obeys Newton’s first law of motion
Explanation: In an inertial frame of reference, objects obey Newton’s first law of motion, which states that an object will remain at rest or in uniform motion unless acted upon by an external force.
48. If you are in a moving car and throw a ball straight up, where will it land according to an observer inside the car (assuming no air resistance)?
ⓐ. In front of the car
ⓑ. Behind the car
ⓒ. Back in your hand
ⓓ. To the side of the car
Correct Answer: Back in your hand
Explanation: According to an observer inside the car, the ball will land back in your hand because the ball shares the car’s forward motion and there is no relative motion between you and the ball in the horizontal direction.
49. How does an observer in a non-inertial frame of reference perceive fictitious forces?
ⓐ. They perceive no forces at all
ⓑ. They perceive only gravitational forces
ⓒ. They perceive additional forces that do not exist in an inertial frame
ⓓ. They perceive only frictional forces
Correct Answer: They perceive additional forces that do not exist in an inertial frame
Explanation: An observer in a non-inertial frame of reference perceives fictitious forces, such as centrifugal and Coriolis forces, which are not present in an inertial frame of reference.
50. Which of the following best describes a geocentric frame of reference?
ⓐ. A frame of reference centered on the Sun
ⓑ. A frame of reference centered on the Earth
ⓒ. A frame of reference centered on the Moon
ⓓ. A frame of reference centered on a moving car
Correct Answer: A frame of reference centered on the Earth
Explanation: A geocentric frame of reference is centered on the Earth. It is a viewpoint in which the Earth is considered the center of the universe or the reference point for observing motion.
51. What is meant by an object being at rest?
ⓐ. The object is moving at a constant speed
ⓑ. The object is accelerating
ⓒ. The object is not changing its position relative to its surroundings
ⓓ. The object is rotating around an axis
Correct Answer: The object is not changing its position relative to its surroundings
Explanation: An object is said to be at rest if it does not change its position relative to its surroundings over time.
52. Which of the following best describes motion?
ⓐ. A change in the color of an object
ⓑ. A change in the position of an object over time
ⓒ. An increase in the temperature of an object
ⓓ. A decrease in the size of an object
Correct Answer: A change in the position of an object over time
Explanation: Motion is defined as a change in the position of an object with respect to a frame of reference over time.
53. How can an object be both at rest and in motion at the same time?
ⓐ. By being in different places
ⓑ. By being observed from different frames of reference
ⓒ. By changing its shape
ⓓ. By changing its temperature
Correct Answer: By being observed from different frames of reference
Explanation: An object can be at rest in one frame of reference and in motion in another. For example, a passenger in a moving car is at rest relative to the car but in motion relative to the ground.
54. Which of the following is an example of an object at rest?
ⓐ. A car traveling on a highway
ⓑ. A ball rolling down a hill
ⓒ. A book lying on a table
ⓓ. A satellite orbiting the Earth
Correct Answer: A book lying on a table
Explanation: A book lying on a table is an example of an object at rest because it is not changing its position relative to the table.
55. Which of the following statements is true about the state of motion of an object?
ⓐ. It is absolute and independent of the observer
ⓑ. It is relative to the observer’s frame of reference
ⓒ. It can only be measured in meters per second
ⓓ. It is the same in all frames of reference
Correct Answer: It is relative to the observer’s frame of reference
Explanation: The state of motion of an object is relative to the observer’s frame of reference. Different observers may perceive different states of motion for the same object depending on their relative positions and velocities.
56. What term is used to describe the change in position of an object over time?
ⓐ. Rest
ⓑ. Speed
ⓒ. Motion
ⓓ. Acceleration
Correct Answer: Motion
Explanation: Motion is the term used to describe the change in position of an object over time relative to a reference point or frame of reference.
57. An object is said to be in uniform motion if:
ⓐ. It moves with a constant acceleration
ⓑ. It changes direction frequently
ⓒ. It covers equal distances in equal intervals of time
ⓓ. It remains stationary
Correct Answer: It covers equal distances in equal intervals of time
Explanation: An object is said to be in uniform motion if it covers equal distances in equal intervals of time, indicating a constant speed and direction.
58. Which of the following examples demonstrates non-uniform motion?
ⓐ. A car moving at a constant speed on a straight road
ⓑ. A cyclist slowing down to stop
ⓒ. A satellite moving at a constant speed in a circular orbit
ⓓ. A person walking at a steady pace
Correct Answer: A cyclist slowing down to stop
Explanation: Non-uniform motion occurs when an object’s speed or direction changes over time. A cyclist slowing down to stop is an example of non-uniform motion because the speed is decreasing.
59. If an object remains at the same position relative to a fixed point, it is said to be:
ⓐ. In motion
ⓑ. Accelerating
ⓒ. At rest
ⓓ. Decelerating
Correct Answer: At rest
Explanation: An object that remains at the same position relative to a fixed point is said to be at rest because it does not change its position over time.
60. Which of the following is an example of motion relative to a frame of reference?
ⓐ. A book lying on a table
ⓑ. A passenger sitting in a moving train
ⓒ. A tree standing in a park
ⓓ. A building in a city
Correct Answer: A passenger sitting in a moving train
Explanation: A passenger sitting in a moving train is an example of motion relative to a frame of reference. The passenger is at rest relative to the train but in motion relative to the ground outside.
61. What is one-dimensional motion?
ⓐ. Motion that occurs in a circular path
ⓑ. Motion that occurs in a straight line
ⓒ. Motion that occurs in a plane
ⓓ. Motion that occurs in all three dimensions
Correct Answer: Motion that occurs in a straight line
Explanation: One-dimensional motion refers to motion that occurs along a single axis or in a straight line, such as a car moving along a straight road.
62. Which of the following is an example of two-dimensional motion?
ⓐ. A car moving on a straight highway
ⓑ. A ball thrown horizontally from a height
ⓒ. A train moving on tracks
ⓓ. An elevator moving up and down
Correct Answer: A ball thrown horizontally from a height
Explanation: Two-dimensional motion occurs in a plane, involving two coordinates (e.g., horizontal and vertical). A ball thrown horizontally exhibits two-dimensional motion as it moves both horizontally and vertically.
63. Which of the following scenarios best illustrates three-dimensional motion?
ⓐ. A plane flying from one city to another
ⓑ. A ball rolling on a flat surface
ⓒ. A pendulum swinging in a straight line
ⓓ. A car traveling on a curved path on a flat road
Correct Answer: A plane flying from one city to another
Explanation: Three-dimensional motion involves movement in all three spatial dimensions (length, width, and height). A plane flying from one city to another exemplifies three-dimensional motion as it moves through air in all three dimensions.
64. In one-dimensional motion, which of the following quantities can fully describe the motion of an object?
ⓐ. Displacement and velocity
ⓑ. Displacement and force
ⓒ. Velocity and time
ⓓ. Force and acceleration
Correct Answer: Displacement and velocity
Explanation: In one-dimensional motion, displacement and velocity are sufficient to fully describe the motion of an object along a straight line.
65. Which of the following is a valid example of one-dimensional motion?
ⓐ. The motion of a satellite orbiting Earth
ⓑ. The motion of a person walking in a park
ⓒ. The motion of a train along a straight track
ⓓ. The motion of a bee flying around a garden
Correct Answer: The motion of a train along a straight track
Explanation: The motion of a train along a straight track is an example of one-dimensional motion because it occurs along a single, straight path.
66. Which mathematical tools are often used to analyze two-dimensional motion?
ⓐ. Vectors and trigonometry
ⓑ. Scalars and algebra
ⓒ. Complex numbers and calculus
ⓓ. Matrices and determinants
Correct Answer: Vectors and trigonometry
Explanation: Vectors and trigonometry are essential mathematical tools for analyzing two-dimensional motion, as they help resolve motion into perpendicular components.
67. Which type of motion is best described by using three spatial coordinates (x, y, z)?
ⓐ. Rotational motion
ⓑ. One-dimensional motion
ⓒ. Two-dimensional motion
ⓓ. Three-dimensional motion
Correct Answer: Three-dimensional motion
Explanation: Three-dimensional motion requires three spatial coordinates (x, y, z) to describe the position and movement of an object in space.
68. A projectile is launched with an initial velocity at an angle to the horizontal. This is an example of:
ⓐ. One-dimensional motion
ⓑ. Two-dimensional motion
ⓒ. Three-dimensional motion
ⓓ. Rotational motion
Correct Answer: Two-dimensional motion
Explanation: A projectile launched at an angle to the horizontal exhibits two-dimensional motion as it moves in both the horizontal and vertical directions simultaneously.
69. Which type of motion involves movement along a curved path in a plane?
ⓐ. One-dimensional motion
ⓑ. Linear motion
ⓒ. Two-dimensional motion
ⓓ. Three-dimensional motion
Correct Answer: Two-dimensional motion
Explanation: Two-dimensional motion can involve movement along a curved path within a plane, requiring two coordinates to describe the motion.
70. In three-dimensional motion, what additional complexity is introduced compared to two-dimensional motion?
ⓐ. The need to consider time
ⓑ. The need to consider friction
ⓒ. The need to consider an additional spatial dimension
ⓓ. The need to consider temperature changes
Correct Answer: The need to consider an additional spatial dimension
Explanation: In three-dimensional motion, the complexity arises from the need to consider an additional spatial dimension (z-axis) beyond the two dimensions (x and y) considered in two-dimensional motion.
71. Which of the following quantities is essential to describe the motion of an object in three-dimensional space?
ⓐ. Displacement vector
ⓑ. Scalar speed
ⓒ. Distance covered
ⓓ. Time taken
Correct Answer: Displacement vector
Explanation: The displacement vector is essential to describe the motion of an object in three-dimensional space as it gives both the magnitude and direction of the object’s movement.
72. Which type of motion can be analyzed using only a single coordinate axis?
ⓐ. Circular motion
ⓑ. One-dimensional motion
ⓒ. Two-dimensional motion
ⓓ. Three-dimensional motion
Correct Answer: One-dimensional motion
Explanation: One-dimensional motion can be analyzed using only a single coordinate axis because it occurs along a straight line, requiring only one dimension to describe its position.
73. Which of the following is an example of two-dimensional motion?
ⓐ. A satellite orbiting the Earth
ⓑ. A pendulum swinging back and forth
ⓒ. A car driving along a straight road
ⓓ. A football kicked at an angle to the ground
Correct Answer: A football kicked at an angle to the ground
Explanation: A football kicked at an angle exhibits two-dimensional motion as it moves both horizontally and vertically, following a curved trajectory.
74. How is the motion of an object described in two dimensions typically represented?
ⓐ. Using a single coordinate axis
ⓑ. Using vectors in a plane
ⓒ. Using a scalar quantity
ⓓ. Using complex numbers
Correct Answer: Using vectors in a plane
Explanation: The motion of an object in two dimensions is typically represented using vectors in a plane, which allows for the description of both magnitude and direction in two perpendicular directions.
75. Which term best describes the movement of a car driving up a hill in a straight line?
ⓐ. One-dimensional motion
ⓑ. Two-dimensional motion
ⓒ. Three-dimensional motion
ⓓ. Circular motion
Correct Answer: One-dimensional motion
Explanation: Even though the car is driving up a hill, if it is moving in a straight line, it is considered one-dimensional motion because it occurs along a single axis.
76. In three-dimensional motion, what does the path of an object typically look like?
ⓐ. A straight line
ⓑ. A curve in a plane
ⓒ. A spiral or complex path in space
ⓓ. A circle
Correct Answer: A spiral or complex path in space
Explanation: In three-dimensional motion, the path of an object can be a spiral or a complex path that extends in all three spatial dimensions.
77. Which of the following best illustrates one-dimensional motion?
ⓐ. A leaf falling from a tree
ⓑ. A train moving on a straight track
ⓒ. A drone flying through the air
ⓓ. A car making a left turn
Correct Answer: A train moving on a straight track
Explanation: A train moving on a straight track is an example of one-dimensional motion as it moves along a single, straight path.
78. Which quantity is used to describe the change in position in two-dimensional motion?
ⓐ. Distance
ⓑ. Displacement vector
ⓒ. Speed
ⓓ. Time
Correct Answer: Displacement vector
Explanation: The displacement vector is used to describe the change in position in two-dimensional motion, providing both the magnitude and direction of the change.
79. What kind of motion is a roller coaster moving on a track with loops and turns?
ⓐ. One-dimensional motion
ⓑ. Two-dimensional motion
ⓒ. Three-dimensional motion
ⓓ. Uniform motion
Correct Answer: Three-dimensional motion
Explanation: A roller coaster moving on a track with loops and turns exemplifies three-dimensional motion as it involves movement in all three spatial dimensions.
80. Which of the following describes an object’s path in two-dimensional motion with constant acceleration?
ⓐ. A straight line
ⓑ. A parabolic trajectory
ⓒ. A circular path
ⓓ. A random path
Correct Answer: A parabolic trajectory
Explanation: In two-dimensional motion with constant acceleration, such as projectile motion under gravity, the object’s path is typically a parabolic trajectory.
81. What does the term “position” refer to in physics?
ⓐ. The time taken by an object to reach a point
ⓑ. The speed of an object
ⓒ. The location of an object at a given time
ⓓ. The acceleration of an object
Correct Answer: The location of an object at a given time
Explanation: Position refers to the location of an object at a particular point in time, usually specified in relation to a reference point or coordinate system.
82. In a one-dimensional coordinate system, how is the position of an object typically represented?
ⓐ. By a vector
ⓑ. By a single coordinate
ⓒ. By a matrix
ⓓ. By a set of equations
Correct Answer: By a single coordinate
Explanation: In a one-dimensional coordinate system, the position of an object is typically represented by a single coordinate value, indicating its location along the axis.
83. How is the position of an object in a two-dimensional plane typically represented?
ⓐ. By a scalar quantity
ⓑ. By two coordinates (x, y)
ⓒ. By a single coordinate
ⓓ. By a three-dimensional vector
Correct Answer: By two coordinates (x, y)
Explanation: The position of an object in a two-dimensional plane is typically represented by two coordinates (x, y), indicating its location along the horizontal and vertical axes.
84. What is the reference point called from which the position of an object is measured?
ⓐ. Origin
ⓑ. Endpoint
ⓒ. Midpoint
ⓓ. Boundary
Correct Answer: Origin
Explanation: The reference point from which the position of an object is measured is called the origin. It serves as the fixed point of reference for the coordinate system.
85. Which of the following statements about position is correct?
ⓐ. Position is always measured relative to a fixed point
ⓑ. Position does not change with time
ⓒ. Position and velocity are the same
ⓓ. Position is a vector quantity
Correct Answer: Position is always measured relative to a fixed point
Explanation: Position is always measured relative to a fixed point or origin. It indicates where an object is located with respect to this reference point.
86. In three-dimensional space, how is the position of an object described?
ⓐ. By two coordinates (x, y)
ⓑ. By a single coordinate
ⓒ. By three coordinates (x, y, z)
ⓓ. By a scalar quantity
Correct Answer: By three coordinates (x, y, z)
Explanation: In three-dimensional space, the position of an object is described by three coordinates (x, y, z), indicating its location along the three spatial dimensions.
87. Which term describes the change in position of an object over time?
ⓐ. Speed
ⓑ. Displacement
ⓒ. Velocity
ⓓ. Acceleration
Correct Answer: Displacement
Explanation: Displacement describes the change in position of an object over time, taking into account the direction of the change.
88. If an object’s position is given as (5, -3) in a two-dimensional coordinate system, what does this represent?
ⓐ. The object is 5 units away from the origin along the x-axis and -3 units along the y-axis
ⓑ. The object is 5 units away from the origin along the y-axis and -3 units along the x-axis
ⓒ. The object is 5 units away from the origin along the z-axis and -3 units along the x-axis
ⓓ. The object is at the origin
Correct Answer: The object is 5 units away from the origin along the x-axis and -3 units along the y-axis
Explanation: In a two-dimensional coordinate system, the position (5, -3) represents that the object is 5 units away from the origin along the x-axis and -3 units along the y-axis.
89. Which of the following can change an object’s position?
ⓐ. A force
ⓑ. A scalar quantity
ⓒ. A dimensionless quantity
ⓓ. A coordinate
Correct Answer: A force
Explanation: A force can change an object’s position by causing it to move from one location to another.
90. Why is it important to define a reference point when describing position?
ⓐ. To provide a basis for comparison
ⓑ. To determine the object’s mass
ⓒ. To calculate the object’s speed
ⓓ. To measure the object’s temperature
Correct Answer: To provide a basis for comparison
Explanation: It is important to define a reference point when describing position to provide a basis for comparison, allowing for an accurate and consistent measurement of an object’s location.
91. What is the purpose of a coordinate system in physics?
ⓐ. To measure time intervals
ⓑ. To describe the position of objects
ⓒ. To calculate force
ⓓ. To determine temperature
Correct Answer: To describe the position of objects
Explanation: A coordinate system is used in physics to describe the position of objects in space relative to a reference point or origin.
92. Which of the following is a common type of coordinate system used in physics?
ⓐ. Temporal coordinate system
ⓑ. Polar coordinate system
ⓒ. Frequency coordinate system
ⓓ. Amplitude coordinate system
Correct Answer: Polar coordinate system
Explanation: The polar coordinate system is a common type of coordinate system used in physics, especially for problems involving circular or rotational symmetry.
93. In a Cartesian coordinate system, what are the standard axes used to describe position in three dimensions?
ⓐ. x, y, z axes
ⓑ. x, y, t axes
ⓒ. a, b, c axes
ⓓ. p, q, r axes
Correct Answer: x, y, z axes
Explanation: In a Cartesian coordinate system, the standard axes used to describe position in three dimensions are the x, y, and z axes.
94. How is the origin of a coordinate system defined?
ⓐ. As the point where all coordinates are zero
ⓑ. As the point with the highest value on the x-axis
ⓒ. As the midpoint of the y-axis
ⓓ. As the average position of all points in the system
Correct Answer: As the point where all coordinates are zero
Explanation: The origin of a coordinate system is defined as the point where all coordinates (x, y, z) are zero, serving as the reference point for all other positions.
95. Which coordinate system uses angles and distances from a central point to describe position?
ⓐ. Cartesian coordinate system
ⓑ. Polar coordinate system
ⓒ. Cylindrical coordinate system
ⓓ. Spherical coordinate system
Correct Answer: Polar coordinate system
Explanation: The polar coordinate system uses angles and distances from a central point (the origin) to describe the position of points in a plane.
96. In a cylindrical coordinate system, which coordinates are used to describe position?
ⓐ. r, θ, z
ⓑ. x, y, z
ⓒ. r, φ, θ
ⓓ. x, r, θ
Correct Answer: r, θ, z
Explanation: In a cylindrical coordinate system, the position of a point is described using the coordinates r (radius), θ (angle), and z (height).
97. Which of the following best describes the Cartesian coordinate system?
ⓐ. It uses distance and angle from a central point
ⓑ. It uses three perpendicular axes
ⓒ. It uses a single axis for all dimensions
ⓓ. It is used only for one-dimensional problems
Correct Answer: It uses three perpendicular axes
Explanation: The Cartesian coordinate system uses three perpendicular axes (x, y, and z) to describe the position of points in space.
98. How are coordinates represented in the spherical coordinate system?
ⓐ. x, y, z
ⓑ. r, θ, φ
ⓒ. a, b, c
ⓓ. u, v, w
Correct Answer: r, θ, φ
Explanation: In the spherical coordinate system, coordinates are represented by r (radius), θ (polar angle), and φ (azimuthal angle).
99. Which coordinate system is most suitable for problems involving rotational symmetry around a central axis?
ⓐ. Cartesian coordinate system
ⓑ. Cylindrical coordinate system
ⓒ. Spherical coordinate system
ⓓ. Temporal coordinate system
Correct Answer: Cylindrical coordinate system
Explanation: The cylindrical coordinate system is most suitable for problems involving rotational symmetry around a central axis, as it uses radius, angle, and height to describe positions.
100. Why is the choice of coordinate system important in solving physics problems?
ⓐ. It determines the units of measurement
ⓑ. It affects the complexity of equations
ⓒ. It dictates the laws of physics to be used
ⓓ. It changes the physical properties of objects
Correct Answer: It affects the complexity of equations
Explanation: The choice of coordinate system is important in solving physics problems because it can simplify or complicate the equations involved, making the problem easier or harder to solve.
Welcome to Class 11 Physics MCQs – Chapter 3: Motion in a Straight Line (Part 1). This page is a chapter-wise question bank for the NCERT/CBSE Class 11 Physics syllabus—built for quick revision and exam speed. Practice MCQs / objective questions / Physics quiz items with solutions and explanations, ideal for CBSE Boards, JEE Main, NEET, competitive exams, and Board exams.
These MCQs are suitable for international competitive exams—physics concepts are universal.
Navigation & pages: The full chapter has 350 MCQs in 4 parts (100 + 100 + 100 + 50). Part 1 contains 100 MCQs split across 10 pages—you’ll see 10 questions per page. Use the page numbers above to view the remaining questions.
What you will learn & practice
- Introduction to Motion and key kinematic ideas
- Position, Path Length, and Displacement (scalar vs vector)
- Average Velocity and Average Speed (definitions & examples)
- Instantaneous Velocity and Speed (limits & interpretation)
- Acceleration (uniform & non-uniform)
- Kinematic Equations for Uniformly Accelerated Motion (1D)
- Relative Velocity in one dimension
How this practice works
- Click an option to check instantly: green dot = correct, red icon = incorrect. The Correct Answer and brief Explanation then appear.
- Use the 👁️ Eye icon to reveal the answer with explanation without guessing.
- Use the 📝 Notebook icon as a temporary workspace while reading (notes are not saved).
- Use the ⚠️ Alert icon to report a question if you find any mistake—your message reaches us instantly.
- Use the 💬 Message icon to leave a comment or start a discussion for that question.
Real value: Strictly aligned to NCERT/CBSE topics, informed by previous-year paper trends, and written with concise, exam-oriented explanations—perfect for one-mark questions, quick concept checks, and last-minute revision.
The full chapter includes 350 solved multiple-choice questions in 4 parts. This page (Part 1) gives the first 100 MCQs with answers and explanations to build your foundations. Explore more with: Class 11 Physics – Chapter Index, Class 11 – Subject Index, All Classes – MCQ Library.
- 👉 Total MCQs in this chapter: 350 (100 + 100 + 100 + 50)
- 👉 This page: first 100 multiple-choice questions with answers & brief explanations (in 10 pages)
- 👉 Best for: Boards • JEE/NEET • chapter-wise test • one-mark revision • quick Physics quiz
- 👉 Next: use the Part buttons and the page numbers above to continue
FAQs on Motion in a Straight Line ▼
▸ What are Motion in a Straight Line MCQs in Class 11 Physics?
These are multiple-choice questions from Chapter:3 of NCERT Class 11 Physics – Motion in a Straight Line. They test topics like position, displacement, speed, velocity, acceleration, equations of motion, and graphs.
▸ How many MCQs are available in this chapter?
There are a total of 350 MCQs from Motion in a Straight Line. They are divided into 4 sets – three sets of 100 questions each and one set of 50 questions.
▸ Are these MCQs useful for NCERT and CBSE board exams?
Yes, these MCQs are strictly based on NCERT/CBSE Class 11 Physics syllabus and are very useful for board exams to strengthen problem-solving and conceptual clarity.
▸ Are Motion in a Straight Line MCQs important for JEE and NEET?
Yes, this chapter is extremely important for JEE and NEET. Concepts of kinematics, velocity-time graphs, and equations of motion are frequently asked in competitive exams.
▸ Do these MCQs include correct answers and explanations?
Yes, every MCQ comes with the correct answer and detailed explanations wherever required. This ensures that students not only practice but also understand the concepts behind the answers.
▸ Who should practice Motion in a Straight Line MCQs?
These MCQs are ideal for Class 11 students, board exam candidates, and aspirants preparing for competitive exams like JEE, NEET, NDA, UPSC, and state-level entrance tests.
▸ Can I practice these MCQs online for free?
Yes, all Motion in a Straight Line MCQs on GK Aim are available online for free. Students can practice them anytime using mobile, tablet, or desktop.
▸ Are these MCQs helpful for quick revision?
Yes, solving these MCQs regularly helps in quick revision, improves memory recall, and boosts exam performance by enhancing accuracy and speed in problem-solving.
▸ Do these MCQs cover both basics and advanced concepts?
Yes, the MCQs cover the complete range from basics like distance and displacement to advanced concepts like relative velocity and motion with constant acceleration.
▸ Why are the 350 MCQs divided into 4 parts?
The MCQs are divided into 4 sets to make practice more structured and manageable. This step-by-step learning approach prevents overload and helps students track progress easily.
▸ Can teachers and coaching institutes use these MCQs?
Yes, teachers and coaching centers can use these MCQs as readymade assignments, quizzes, and practice material for Class 11 Physics and competitive exams.
▸ Are these MCQs mobile-friendly?
Yes, the Motion in a Straight Line MCQs pages are fully optimized for smartphones and tablets so students can practice anytime, anywhere.
▸ Can I download or save Motion in a Straight Line MCQs for offline study?
Yes, you can download these MCQs in PDF format for offline practice. Please visit our website shop.gkaim.com