Motion in a Straight Line Mock Test – Class 11 Physics

1. Two bodies move along the same straight line. Body starts from with constant velocity . Body starts from from rest and accelerates in the negative direction with . When do they meet?

2. Motion in a straight line is most closely described by which idea?

3. Consider the following statements about area under a velocity-time graph.
Statement I: Signed area gives displacement.
Statement II: Total absolute area gives distance travelled.
Statement III: Area below the time axis contributes positive displacement.

4. A particle has , with in and in . Its instantaneous acceleration at is

5. Equality between distance travelled and magnitude of displacement is possible when a body

6. Consider the following statements about displacement in one-dimensional motion.
Statement I: Displacement can be zero even when distance travelled is not zero.
Statement II: Displacement is calculated using .
Statement III: Displacement must always be positive because it is measured in .

7. The third equation of motion can be obtained by eliminating from

8. A moving object has an graph whose slope decreases but remains positive. The object is

9. A body is at at one instant and later at . The coordinate sign at both instants is negative, but the motion during the interval is best described as

10. Match each vertical-motion situation with the correct sign description when upward is chosen as positive.

11. A stone is released from a rising balloon. At the release instant, the balloon has velocity upward. Taking upward as positive and , the stone’s velocity after is

12. A car has and brakes uniformly with . The distance covered before stopping is

13. A distance record for a moving ant says . In SI units, this distance is

14. A data table for a moving bead is shown below.

The correct pair of average quantities is

15. A body moves with , and body moves with , where is in and is in . The relative velocity of with respect to is

16. Consider the following statements about a straight-line graph.
Statement I: Its slope is constant.
Statement II: It represents uniform velocity.
Statement III: Its slope gives acceleration directly.

17. A body travels from to , then returns to . What is its displacement for the complete motion?

18. Assertion: Rest and motion are relative terms.
Reason: The description of rest or motion can depend on the observer’s frame of reference.

19. Consider the following statements.
Statement I: Average speed is always non-negative.
Statement II: Average velocity can be negative in one-dimensional motion.
Statement III: Average velocity uses total distance as its numerator.

20. Consider the following statements about a graph.
Statement I: The sign of velocity is decided by whether the graph is above or below the time axis.
Statement II: The slope of the graph gives acceleration.
Statement III: A horizontal graph always represents rest.

21. A lift moves from the ground floor to the third floor and then stops. Why is this a suitable example of one-dimensional motion?

22. A passenger walking forward inside a train has velocity relative to the train. The train has velocity relative to the ground. The passenger’s velocity relative to the ground is

23. A moving observer cannot decide absolute rest or absolute motion from one-dimensional kinematics alone because

24. Use the graph description below.

What does this show about the instantaneous velocity at ?

25. In the equation , the term represents

26. Match each acceleration-related description with its correct expression or meaning.

27. A body moves with , and body moves with . What is the separation between them?

28. A freely falling body starts from rest. Neglecting air resistance, the distances covered in the , , and seconds are in the ratio

29. Consider the following statements about average speed and average velocity.
Statement I: Average speed cannot be negative.
Statement II: The magnitude of average velocity can never exceed average speed for the same time interval.
Statement III: Average speed and average velocity always have the same magnitude in one-dimensional motion.

30. A displacement of along a chosen -axis means that

31. Two trains of lengths and move in the same direction with speeds and . The faster train completely overtakes the slower train in

32. In uniformly accelerated motion, the equation should be used carefully because

33. The average velocity during uniformly accelerated motion can be written as because

34. A uniformly accelerated object has and . Its displacement in the second is

35. Two coordinate descriptions are made for the same straight path. Case 1: east is positive. Case 2: west is positive. A scooter moves east from a point. How is this displacement represented in the two cases?

36. A police jeep moving at chases a car moving ahead at . If the car is ahead initially and both speeds remain constant, the catch-up time is

37. A body starts from rest with acceleration , and body starts from rest with acceleration from the same point at the same instant. Their relative acceleration is

38. A body returns to its starting point after covering in . The average speed and average velocity are

39. For a body obeying , doubling the time interval while keeping constant will double

40. A body thrown upward from a tower has , , and impact time . The velocity just before hitting the ground is

41. A cart starts from with and uniform acceleration . Its position after is

42. Study the following one-dimensional journey.

For the whole journey, distance travelled and displacement are respectively

43. Read the case below.

What is the velocity of the car at ?

44. A ball is thrown vertically upward with . Taking upward as positive and , its velocity after is

45. A body has the same velocity at and at . What is its average acceleration over this interval?

46. A car moving at brakes uniformly with acceleration for . Its displacement during braking is

47. A person walking on a moving walkway has velocity relative to the walkway. The walkway moves at relative to the ground. The person's velocity relative to the ground is

48. A body moving in the positive direction has and uniform acceleration . Its velocity after is

49. A car moving with constant velocity passes a motorcycle at rest. The motorcycle starts at the same instant with uniform acceleration . The time taken by the motorcycle to catch the car is

50. A body moves with constant velocity when it