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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. In which scenario would the Work-Energy Theorem be most applicable for calculating the energy changes of a system?

2 / 30

2. Which of the following processes involves the conversion of chemical energy to electrical energy?

3 / 30

3. 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?

4 / 30

4. What is the work done by gravity when an object falls freely under the influence of gravity?

5 / 30

5. Which device converts mechanical energy into electrical energy most efficiently?

6 / 30

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

7 / 30

7. A spring with a spring constant of 300 N/m is compressed by 0.1 meters. What is the force applied to the spring?

8 / 30

8. How is the scalar product (dot product) used in calculating work done by a force?

9 / 30

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

10 / 30

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

11 / 30

11. Which type of energy transformation occurs in a hydroelectric power plant?

12 / 30

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

13 / 30

13. A force varies with displacement as , where is in meters. Calculate the work done by this force over a displacement from m to m.

14 / 30

14. 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?

15 / 30

15. According to Einstein's equation, if the mass of an object increases, what happens to its energy?

16 / 30

16. What type of energy is crucial for plants during photosynthesis?

17 / 30

17. Which principle states that the total energy of an isolated system remains constant?

18 / 30

18. If a force does negative work on an object, what does this imply according to the Work-Energy Theorem?

19 / 30

19. What is the power output of a device that does 500 joules of work in 10 seconds?

20 / 30

20. What is the definition of power in physics?

21 / 30

21. Calculate the work done by a force over a displacement from m to m.

22 / 30

22. A mass-spring system oscillates with a maximum displacement of 0.3 meters and a spring constant of 100 N/m. What is the maximum elastic potential energy stored in the spring?

23 / 30

23. 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?

24 / 30

24. A machine performs work at a rate of 500 joules per second. What is the power output of the machine?

25 / 30

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

26 / 30

26. What is the primary source of electromagnetic energy on Earth?

27 / 30

27. 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?

28 / 30

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

29 / 30

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

30 / 30

30. Define the work-energy theorem.

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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. How does the human body utilize chemical energy?

2 / 50

2. How does the scalar product change if both vectors are scaled by a factor of ?

3 / 50

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

4 / 50

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

5 / 50

5. Which of the following is an example of chemical energy?

6 / 50

6. If the net work done on an object is zero, what can be said about its kinetic energy?

7 / 50

7. What happens to the elastic potential energy if the spring constant is halved while keeping the displacement constant?

8 / 50

8. How is the work done by a constant force over a displacement calculated?

9 / 50

9. What is the power output if a device does 8000 joules of work in 20 seconds?

10 / 50

10. A pendulum swings from a height of 2 meters. Assuming no air resistance, what happens to the potential energy at the lowest point of the swing?

11 / 50

11. In a mechanical system, what does an increase in power indicate?

12 / 50

12. In which of the following scenarios is the potential energy of a spring utilized?

13 / 50

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

14 / 50

14. What is the potential energy stored in a spring (elastic potential energy) when it is compressed or stretched by a displacement x?

15 / 50

15. What is the primary mechanism by which solar panels convert sunlight into electricity?

16 / 50

16. If a force varies with displacement as , where is in meters, and it moves from m to m, what is the work done?

17 / 50

17. What type of potential energy is stored in a dam?

18 / 50

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

19 / 50

19. If a force of 60 N compresses a spring by 0.15 meters, what is the spring constant?

20 / 50

20. What is nuclear fusion?

21 / 50

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

22 / 50

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

23 / 50

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

24 / 50

24. If a block slides down a frictionless inclined plane, what happens to its potential energy?

25 / 50

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

26 / 50

26. If a spring is stretched 0.2 meters from its equilibrium position and has a spring constant of 50 N/m, what is its elastic potential energy?

27 / 50

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

28 / 50

28. How does a geothermal power plant convert energy?

29 / 50

29. How can the Work-Energy Theorem be applied to calculate the speed of an object after it has been acted upon by a constant force over a certain distance?

30 / 50

30. What type of reactions in stars are governed by the principles of mass-energy equivalence?

31 / 50

31. In the absence of non-conservative forces, what happens to the mechanical energy of a system?

32 / 50

32. What is the SI unit of work?

33 / 50

33. In the context of work done by a force, the scalar product is used to calculate:

34 / 50

34. What is the SI unit of work done by a variable force?

35 / 50

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

36 / 50

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

37 / 50

37. What type of energy is crucial for plants during photosynthesis?

38 / 50

38. If a spring with a spring constant of 200 N/m is compressed by 0.1 meters, what is the potential energy stored in the spring?

39 / 50

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

40 / 50

40. How is mechanical power calculated?

41 / 50

41. 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?

42 / 50

42. 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?

43 / 50

43. A spring with a spring constant of 600 N/m is stretched by 0.1 meters. What is the potential energy stored in the spring?

44 / 50

44. The scalar product of two vectors and can be geometrically interpreted as which of the following?

45 / 50

45. According to Einstein's equation, if the mass of an object increases, what happens to its energy?

46 / 50

46. In calculating the power delivered by a force, which product is used?

47 / 50

47. The power of an engine is defined as:

48 / 50

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

49 / 50

49. The scalar product of two perpendicular vectors is:

50 / 50

50. If the displacement of a spring is doubled, how does the elastic potential 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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