This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 4 Work – Quiz 43 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 43 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If the work done to stretch a spring by 8.0 cm is 10 J, the spring constant is A) 250 N/m. B) 3125 N/m. C) 2500 N/m. D) 5000 N/m. Show Answer Correct Answer: B) 3125 N/m. 2. What would have the greatest kinetic energy? A) A car driving down a hill. B) A person running down a hill. C) A ball rolling down a hill. D) None of the above. Show Answer Correct Answer: A) A car driving down a hill. 3. A ball of mass 2kg is thrown up with a speed of 10m/s. Find the kinetic energy of the ball at the time of throwing. A) 50J. B) 100J. C) 99J. D) 200J. Show Answer Correct Answer: B) 100J. 4. In which of the following is NO work done A) Lifting a 5N book straight up. B) Dropping a 5N book. C) Allowing a 5N book to rest on the table. D) None of the above. Show Answer Correct Answer: C) Allowing a 5N book to rest on the table. 5. What is the renewable source that produces energy from the sun? A) Hydroelectric. B) Solar. C) Biomass. D) Geothermal. Show Answer Correct Answer: B) Solar. 6. What is the spring constant? A) The ratio of the force affecting the spring to the displacement caused by it. B) The ratio of the mass affecting the spring to the displacement caused by it. C) The ratio of the energy affecting the spring to the displacement caused by it. D) The ratio of the speed affecting the spring to the displacement caused by it. Show Answer Correct Answer: A) The ratio of the force affecting the spring to the displacement caused by it. 7. "A volleyball on a house's rooftop" . In what type of mechanical energy does it fall? A) Potential Energy. B) Kinetic Energy. C) Both. D) None of the above. Show Answer Correct Answer: A) Potential Energy. 8. Which of the following is an example of work being done? A) Pushing down on a stationary stone cube. B) Pushing a box across a floor. C) Lifting and carrying a box. D) None of the above. Show Answer Correct Answer: B) Pushing a box across a floor. 9. What type of prehistoric environment did oil and natural gas form from? A) Oceans. B) Forrests. C) Swamps. D) Desert. Show Answer Correct Answer: A) Oceans. 10. The work done by a bullet train going to uganda is A) The work done by a bullet train going to Uganda is zero. B) The work done by a bullet train going to Uganda is negative. C) The work done by a bullet train going to Uganda is positive. D) The work done by a bullet train going to Uganda is not related to energy. Show Answer Correct Answer: C) The work done by a bullet train going to Uganda is positive. 11. What is the S.I. unit for work? A) Calorie. B) Newton. C) Joule. D) Watt. Show Answer Correct Answer: C) Joule. 12. What is the unit of thermal energy? A) W. B) Pa. C) N. D) J. Show Answer Correct Answer: D) J. 13. Power is measure in A) Joules. B) Watts. C) Newton-meters. D) Joules-meters. Show Answer Correct Answer: B) Watts. 14. Which is doing work? A) Pushing a wall. B) Holding a box. C) Picking up a pencil. D) Sitting in a chair. Show Answer Correct Answer: C) Picking up a pencil. 15. Which of the following is an example of non-conservative force? A) Gravitational force. B) Elastic force. C) Frictional force. D) Magnetic force. Show Answer Correct Answer: C) Frictional force. 16. A weightlifter holding a dumbbell over his head. Is work done? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 17. Amir picks his school bag from the floor and put it on the table.What is the gravitational potential energy gained by the bag if the bag has the mass of 1.5 kg and the height of the table is 0.5 m?(Gravity acceleration is assumed as 10 m s-2) A) 0.75 J. B) 7.5 J. C) 75 J. D) 750 J. Show Answer Correct Answer: B) 7.5 J. 18. Assertion:When a ball collides elastically with the floor, it rebounds with the same velocity as with it strikes.Reason:Momentum of Earth + Ball system remains constant. A) Assertion and Reason are true, Reason is correct explanation of Assertion. B) Assertion and Reason are true, Reason is not correct explanation of Assertion. C) Assertion is true, Reason is false. D) Both Assertion and Reason are false. Show Answer Correct Answer: B) Assertion and Reason are true, Reason is not correct explanation of Assertion. 19. An engine reaches its top speed from rest in 7.5 s. It is able to perform 250, 000 J of work in that time. How much power does this engine have in that time? A) 0.00003 W. B) 33, 333 W. C) 1, 875, 000 W. D) 1873 W. Show Answer Correct Answer: B) 33, 333 W. 20. If a machine does 200 J of work in 10 seconds, what is its power output? A) 30 W. B) 25 W. C) 15 W. D) 20 W. Show Answer Correct Answer: D) 20 W. 21. In physics, power is the rate at which ..... is used. A) Current. B) Speed. C) Energy. D) Force. Show Answer Correct Answer: C) Energy. 22. ONE HORSE POWER EQUALS TO A) 744 watt. B) 746 watt. C) O calorie. D) 100 calorie. Show Answer Correct Answer: B) 746 watt. 23. What is the unit used to express work? A) Joule. B) Watt. C) All the above. D) None of the above. Show Answer Correct Answer: A) Joule. 24. 1 When a ball accelerates down a slope, it ..... A) Gains both kinetic energy and potential energy. B) Gains kinetic energy but loses potential energy. C) Gains potential energy but loses kinetic energy. D) Neither gains nor loses both kinetic energy and potential energy. Show Answer Correct Answer: B) Gains kinetic energy but loses potential energy. 25. What is the difference between Work and Energy? A) Work is the process of energy transfer, while energy is the capacity to do work. B) Work and energy are the same concepts. C) Energy is the process of work transfer, while work is the capacity to do energy. D) Work is a type of energy that can be stored. Show Answer Correct Answer: A) Work is the process of energy transfer, while energy is the capacity to do work. ← PreviousNext →Related QuizzesClass 11 Physics (Part I) Chapter 4 Work Quiz 1Class 11 Physics (Part I) Chapter 4 Work Quiz 2Class 11 Physics (Part I) Chapter 4 Work Quiz 3Class 11 Physics (Part I) Chapter 4 Work Quiz 4Class 11 Physics (Part I) Chapter 4 Work Quiz 5Class 11 Physics (Part I) Chapter 4 Work Quiz 6Class 11 Physics (Part I) Chapter 4 Work Quiz 7Class 11 Physics (Part I) Chapter 4 Work Quiz 8Class 11 Physics (Part I) Chapter 4 Work Quiz 9Class 11 Physics (Part I) Chapter 4 Work Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books