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Class 11 Physics — Chapter 6: Work, Energy, and Power Online Test

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Class 11 Physics: Work, Energy, and Power Online Test (Paper 1)

Welcome to Paper 1! This is your foundation to build confidence and get you ready to tackle the challenges ahead.

  • Total Questions: 20
  • Time Allotted: 30 minutes
  • Passing Score: 40%
  • Randomization: No
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 20

1. What is the definition of power in physics?

2 / 20

2. What energy conversion process occurs in a coal-fired power plant?

3 / 20

3. Which type of electromagnetic wave is used in remote sensing and satellite imagery?

4 / 20

4. What is a common use of nuclear energy besides electricity generation?

5 / 20

5. What is the primary source of chemical energy for most living organisms?

6 / 20

6. What is the specific heat capacity of a substance?

7 / 20

7. What role does spring potential energy play in a jack-in-the-box toy?

8 / 20

8. A spring with a spring constant of 250 N/m is compressed by 0.2 meters. What is the potential energy stored in the spring?

9 / 20

9. A spring has a spring constant of 200 N/m. What is the elastic potential energy stored when the spring is stretched by 0.2 meters?

10 / 20

10. A satellite orbits Earth in a circular path. Assuming no external forces, what happens to the satellite's total mechanical energy?

11 / 20

11. A block is dropped from a height of 10 meters. Neglecting air resistance, what happens to the block's kinetic energy just before it hits the ground?

12 / 20

12. Which law of physics is used to calculate elastic potential energy in a spring?

13 / 20

13. What happens to the elastic potential energy of a spring if its spring constant is doubled?

14 / 20

14. What is the relationship between power, work, and time?

15 / 20

15. Which situation describes higher power output?

16 / 20

16. When a block slides down a frictionless inclined plane, what happens to its potential energy according to the conservation of mechanical energy?

17 / 20

17. When a force acts on an object, causing it to move in the direction of the force, what happens to the object's kinetic energy according to the Work-Energy Theorem?

18 / 20

18. An object of mass 4 kg is moving with a velocity of 6 m/s. How much work is required to bring it to rest?

19 / 20

19. A force of 15 N acts on an object, causing it to accelerate at 5 m/s². If the object moves a distance of 10 m, how much work is done?

20 / 20

20. If an object's velocity triples, how does its kinetic energy change, assuming its mass remains constant?

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Class 11 Physics: Work, Energy, and Power Online Test (Paper 2)

Welcome to Paper 2! You’ve mastered the basics, and now it’s time to test your understanding with a more challenging set of questions.

Get new questions on each attempt

  • Total Questions: 30
  • Time Allotted: 45 minutes
  • Passing Score: 50%
  • Randomization: Yes
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 30

1. A force of 12 N is applied at an angle of to the horizontal to move an object 8 m horizontally. What is the work done?

2 / 30

2. What is Hooke's Law?

3 / 30

3. Define the work-energy theorem.

4 / 30

4. In a hydroelectric power plant, which form of energy is used to generate electricity?

5 / 30

5. Which of the following is a major challenge in harnessing nuclear fusion for energy production on Earth?

6 / 30

6. A force of 15 N acts on an object, causing it to accelerate at 5 m/s². If the object moves a distance of 10 m, how much work is done?

7 / 30

7. If a 1000 kg car accelerates from 0 to 20 m/s in 10 seconds, how much work was done on it?

8 / 30

8. What happens to the work done if the angle between the force and displacement is 90 degrees?

9 / 30

9. An electric motor has a power rating of 2.5 kilowatts (kW). How much energy does it consume in 2 hours of operation?

10 / 30

10. What type of energy transformation occurs in a microwave oven?

11 / 30

11. Which type of energy do wind turbines convert into electrical energy?

12 / 30

12. Which concept is fundamental to the application of the Work-Energy Theorem to various mechanical situations?

13 / 30

13. If a pendulum is released from a height of 1 meter, what can be said about its kinetic energy at the lowest point of its swing?

14 / 30

14. Which theorem relates the work done on an object to its change in kinetic energy?

15 / 30

15. Which energy conversion occurs in a photocopier?

16 / 30

16. What happens to power if the work done remains constant but the time taken is increased?

17 / 30

17. A satellite orbits Earth in a circular path. Assuming no external forces, what happens to the satellite's total mechanical energy?

18 / 30

18. Which of the following is an example of kinetic energy being converted into potential energy?

19 / 30

19. Which situation represents the highest power output?

20 / 30

20. If the displacement of a spring is doubled, how does the elastic potential energy change?

21 / 30

21. Which law of physics is used to calculate elastic potential energy in a spring?

22 / 30

22. A force acts on an object displacing it from m to m. Calculate the work done.

23 / 30

23. A motor does 5000 J of work in 10 seconds. What is its power output?

24 / 30

24. Which of the following conditions must be met for work to be done on an object?

25 / 30

25. Which unit of power is commonly used in the context of gravitational forces and mechanical work?

26 / 30

26. A force of 5 N acts on an object, moving it a distance of 10 m. If the object's initial speed was 2 m/s and its mass is 3 kg, what is its final kinetic energy?

27 / 30

27. Which type of energy transformation occurs in a battery-powered flashlight?

28 / 30

28. A force of 15 N is applied vertically upwards on an object that moves vertically upwards a distance of 3 m. What is the work done?

29 / 30

29. A person pushes a wall with a force of 100 N but the wall does not move. How much work is done on the wall?

30 / 30

30. What is mechanical power?

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Class 11 Physics: Work, Energy, and Power Online Test (Paper 3)

Welcome to Paper 3! You’ve warmed up—now it's time to step up your game and conquer the challenge with tougher questions!

Earn a certificate upon passing

Get new questions with every attempt

  • Total Questions: 50
  • Time Allotted: 75 minutes
  • Passing Score: 70%
  • Randomization: Yes
  • Certificate: Yes
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 50

1. What is the primary product of nuclear fusion in the sun?

2 / 50

2. If a force of 10 N acts in the direction of displacement of 5 m, what is the work done?

3 / 50

3. What is a common application of electromagnetic energy in communication?

4 / 50

4. A car engine delivers 150 horsepower. What is the approximate power output of the engine in kilowatts (kW)?

5 / 50

5. A body is said to be in equilibrium if:

6 / 50

6. What type of energy does a rock at the edge of a cliff have?

7 / 50

7. What is the scalar product of a vector with itself?

8 / 50

8. In the context of the Work-Energy Theorem, what does the term "mechanical energy" refer to?

9 / 50

9. Which physical quantity does power depend on?

10 / 50

10. If a force of 15 N is applied at an angle of above the horizontal to move an object 4 m horizontally, what is the work done?

11 / 50

11. Which situation describes higher power output?

12 / 50

12. What is the specific heat capacity of a substance?

13 / 50

13. A 2 kg box is pushed horizontally across a frictionless surface with a constant force of 5 N for a distance of 10 m. Calculate the work done on the box.

14 / 50

14. What type of reaction is primarily responsible for the release of chemical energy in cells?

15 / 50

15. A roller coaster is designed to convert potential energy into kinetic energy and vice versa. What must be true for the conservation of mechanical energy to hold in this system?

16 / 50

16. Which of the following scenarios represents a higher power output?

17 / 50

17. Which of the following statements is true about thermal energy?

18 / 50

18. If vectors and are orthogonal, what is their scalar product?

19 / 50

19. An object is moved 4 meters to the right while a constant force of 5 N acts to the left. What is the work done by this force?

20 / 50

20. In the context of torque, the scalar product is used to calculate which of the following?

21 / 50

21. Which of the following is true for the scalar product of a vector with the zero vector?

22 / 50

22. What is the primary function of power in machines and devices?

23 / 50

23. What happens to the kinetic energy of an object if its mass is doubled while its velocity remains constant?

24 / 50

24. If a ball rolls down a frictionless hill, how does its kinetic energy change compared to its potential energy according to the conservation of mechanical energy?

25 / 50

25. Which SI unit is used to measure kinetic energy?

26 / 50

26. What is the primary source of chemical energy for most living organisms?

27 / 50

27. A force of 20 N is applied vertically upwards on an object that moves vertically upwards a distance of 5 m. What is the work done?

28 / 50

28. A bullet fired from a gun possesses kinetic energy due to its:

29 / 50

29. An archer pulls back a bowstring, storing energy in the bow. When the arrow is released, what conservation law describes the energy transformation?

30 / 50

30. If the displacement of a spring is doubled, how does the elastic potential energy change?

31 / 50

31. Which of the following statements is true about kinetic energy?

32 / 50

32. What is electromagnetic energy?

33 / 50

33. A person pushes a wall with a force of 100 N but the wall does not move. How much work is done on the wall?

34 / 50

34. A force acts on an object displacing it from m to m. Calculate the work done.

35 / 50

35. Which of the following properties does the scalar product of two vectors satisfy?

36 / 50

36. If vectors and , what is ?

37 / 50

37. What is the power output if a device does 240 joules of work in 12 seconds?

38 / 50

38. The power of an engine is defined as:

39 / 50

39. A 2 kg object initially at rest is acted upon by a constant force of 10 N for a distance of 5 m. Calculate the change in kinetic energy using the Work-Energy Theorem.

40 / 50

40. Which type of energy is most important for the operation of electrical appliances?

41 / 50

41. Why is the concept of potential energy essential when using the Work-Energy Theorem?

42 / 50

42. The scalar product of two perpendicular vectors is:

43 / 50

43. How does the Work-Energy Theorem differ from the Work-Power Theorem in its application?

44 / 50

44. What does the concept of mass-energy equivalence, as described by Einstein's equation (E = mc²), suggest?

45 / 50

45. An object of mass 5 kg has a kinetic energy of 100 J. What is its velocity?

46 / 50

46. Which device uses the conversion of kinetic energy into electrical energy?

47 / 50

47. What is the spring constant (k) if a force of 100 N is required to compress a spring by 0.5 meters?

48 / 50

48. Which of the following best explains why chemical energy is considered a form of potential energy?

49 / 50

49. What is the work done by a constant force if the displacement is zero?

50 / 50

50. Which theorem is used to relate the work done on an object to its kinetic energy change?

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Practice Work, Energy, and Power MCQs
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Class 11 Physics — Chapter 6: Work, Energy, and Power Online Test

The Work, Energy, and Power Online Test for Class 11 Physics helps you test your understanding of work–energy relations, conservation of energy, and power calculations in real exam style. Solve MCQ-based mock papers with instant evaluation and get a certificate when you clear Paper 3. All tests strictly follow the NCERT/CBSE Class 11 syllabus and are suitable for JEE / NEET Foundation preparation.

These tests simulate real question-paper formats with time limits and mixed difficulty levels. Check your performance instantly, analyze weak areas, and improve accuracy. Every paper is free, auto-checked, and mobile-friendly, allowing unlimited retakes.

About this Online Test

This chapter-wise online test set for Work, Energy, and Power includes three structured papers to enhance learning step by step:

  • Paper 1 — Basics: 20 questions · 30 min · Pass ≥ 40%
  • Paper 2 — Mixed Practice: 30 questions · 45 min · Pass ≥ 50% · New set each attempt
  • Paper 3 — Challenge: 50 questions · 75 min · Pass ≥ 70% · Certificate on pass

Papers 2 and 3 randomly select fresh questions on every attempt, ensuring broader concept coverage. Each paper is timed, automatically graded, and includes full answer review for self-assessment.

Key Topics Covered (Work, Energy, and Power)

  • Work done by constant and variable forces
  • Work–Energy Theorem and its applications
  • Kinetic and Potential Energy
  • Conservation of Mechanical Energy
  • Power and instantaneous power
  • Elastic and inelastic collisions
  • Spring energy and energy graphs
  • Numericals on energy transformations

How the Test Works

Choose a paper, answer MCQs within the allotted time, and submit to view your marks, accuracy, and explanations. Each attempt helps track improvement and builds confidence for school and competitive exams.

On-Screen Features

  • Timed environment with progress bar
  • Auto-submit on timeout
  • Instant scorecard and answer-key review
  • Fresh question sets for Papers 2 and 3
  • Unlimited attempts without login

Who Should Attempt

  • Class 11 CBSE/NCERT students revising Chapter 6
  • JEE and NEET aspirants focusing on energy-based numericals
  • Bridge learners strengthening mechanics before Class 12
  • Teachers / tutors assigning ready-made online papers

Why This Test Helps

  • Improves problem-solving speed for energy and power questions
  • Checks understanding through real-time feedback
  • Builds exam discipline with timed practice
  • Completely free and safe—no signup required

Preparation Tips

  • Revise formulas for work, energy, and power before attempting Paper 1.
  • Focus on Work–Energy Theorem and conservation principles.
  • Practice numerical questions on potential energy and power output.
  • Attempt Paper 3 under timed conditions for exam-level confidence.

Important Instructions

  • Do not refresh or close the window during the test.
  • Use the latest version of Chrome / Edge browser.
  • Stable internet connection is recommended for smooth submission.

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