This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 4 Work – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is an example of potential energy being converted into kinetic energy? A) A car accelerating on a highway. B) A book falling off a shelf. C) A person running a marathon. D) A light bulb being turned on. Show Answer Correct Answer: B) A book falling off a shelf. 2. A car accelerates from rest to a speed of 20 m/s in 10 seconds. What is the average power output if the car's mass is 1000 kg? A) 2000 Watts. B) 4000 Watts. C) 20000 Watts. D) 40000 Watts. Show Answer Correct Answer: C) 20000 Watts. 3. A tank of size 10m x10m x10m is full of water and built on the ground. If g = 10ms$^{-2}$, the potential energy of the water in the tank is A) 5 x 10$^{7}$ J. B) 1 x 10$^{8}$ J. C) 5 x 10$^{4}$ J. D) 5 x 10$^{5}$ J. Show Answer Correct Answer: A) 5 x 10$^{7}$ J. 4. A 100 N force is applied to move an object a horizontal distance of 5 meters at constant speed in 10 seconds. How much power is done? A) 50J. B) 50W. C) 500J. D) 500W. Show Answer Correct Answer: B) 50W. 5. A car accelerates from rest to a speed of 20 m/s in 5 seconds. What is the average power output of the car's engine if the car's mass is 1000 kg? A) 40, 000 W. B) 20, 000 W. C) 80, 000 W. D) 10, 000 W. Show Answer Correct Answer: C) 80, 000 W. 6. Terry lifts his couch to find the missing remote control. Is this an example of positive work, negative work or no work? A) Positive Work. B) Negative Work. C) No Work. D) Can Not Be Determined. Show Answer Correct Answer: A) Positive Work. 7. An object raised above the ground has ..... energy A) Kinetic. B) Potential. C) All the above. D) None of the above. Show Answer Correct Answer: B) Potential. 8. An object is in free fall. The change in gravitational potential energy of the body depends upon its mass m, the change in height $\Delta$h and the gravitational field strength g. What is the correct expression for the change in gravitational potential energy? A) Gm$\Delta$h. B) Gm/$\Delta$h. C) G$\Delta$h/m. D) M$\Delta$h/g. Show Answer Correct Answer: A) Gm$\Delta$h. 9. What is the symbol used to represent the internal energy of a system? A) E. B) $\Delta$E. C) Q. D) W. Show Answer Correct Answer: A) E. 10. It takes 9 seconds to move an object 3 meters using a force of 6 Newtons. What's the power? A) 81 W. B) 2 W. C) 4 W. D) None of the above. Show Answer Correct Answer: B) 2 W. 11. Work is a product of A) F / S. B) F * S. C) F + S. D) None of these. Show Answer Correct Answer: B) F * S. 12. Assertion:In an elastic collision between two bodies, the energy of each body is conserved.Reason:The total energy of an isolated system is conserved. A) Assertion and Reason are true, Reason is the correct explanation of Assertion. B) Assertion and Reason are true, Reason is not the correct explanation of Assertion. C) Assertion is true, Reason is false. D) Both Assertion and Reason are false. Show Answer Correct Answer: D) Both Assertion and Reason are false. 13. Which of the following is not a form of energy? A) Light. B) Sound. C) Air. D) Electricity. Show Answer Correct Answer: C) Air. 14. F=200 Nd=50 mw=?? A) 4 J. B) 0.25 J. C) 250 J. D) 10, 000 J. Show Answer Correct Answer: D) 10, 000 J. 15. A ball is thrown directly upward. Which of the following is TRUE before it reaches its maximum height? A) A.Its potential energy increases and kinetic energy decreases. B) Its potential energy always equals to kinetic energy. C) Its potential energy decreases and kinetic energy increases. D) Its potential energy is 0 J and kinetic energy is constant. Show Answer Correct Answer: A) A.Its potential energy increases and kinetic energy decreases. 16. What energy resource produces energy from recently living organisms such as leaves or plants? These materials can be burned to release energy. A) Geothermal. B) Solar. C) Biomass. D) Hydroelectric. Show Answer Correct Answer: C) Biomass. 17. The more POWER you use to move an object, the more work you do. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 18. Which value and symbol are incorrectly paired? A) Work and joules. B) Force and newton. C) Power and watt. D) Potential energy and watt. Show Answer Correct Answer: D) Potential energy and watt. 19. Which ONE of the following physical quantities is equal to the product of force and constant velocity? A) Work. B) Power. C) Energy. D) Acceleration. Show Answer Correct Answer: B) Power. 20. What is the work done on an object when the applied force is zero? A) Zero. B) Positive. C) Negative. D) Cannot be determined. Show Answer Correct Answer: A) Zero. 21. What happens to the kinetic energy of a moving object if the net work done is positive? A) The kinetic energy increase. B) The kinetic energy decrease. C) The kinetic energy remains constant. D) Tke kinetic energy is zero. Show Answer Correct Answer: A) The kinetic energy increase. 22. At the top of its arc, a pendulum has maximum kinetic enert A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 23. How much work is done on a vacuum cleaner pulled 3m by a force of 50N at an angle of 30-degrees above the horizontal? A) 50J. B) 80J. C) 130J. D) 240J. Show Answer Correct Answer: C) 130J. 24. Silly Sally leaves her iPhone on top of a brick wall. Then it falls off of the wall. What is the energy transformation? A) Gravitational potential energy to Kinetic Energy. B) Kinetic Energy to gravitational potential energy. C) Electrical potential energy to kinetic energy. D) Spring potential energy to kinetic energy. Show Answer Correct Answer: A) Gravitational potential energy to Kinetic Energy. 25. The law of Conservation of Energy says ..... A) Energy is constantly created. B) Energy can not be created or destroyed instead it changes from one form to another. C) Energy can not change forms. D) None of the above. Show Answer Correct Answer: B) Energy can not be created or destroyed instead it changes from one form to another. ← 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