This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 4 Work – Quiz 42 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 42 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How does work relate to energy transfer? A) Work is the transfer of energy through force and movement. B) Work is only related to heat transfer. C) Work is the same as energy. D) Energy can exist without work. Show Answer Correct Answer: A) Work is the transfer of energy through force and movement. 2. If you push an object a given distance, while applying four times the force, you do ..... A) Twice as much work. B) Four times as much work. C) Half as much work. D) The same amount of work. Show Answer Correct Answer: B) Four times as much work. 3. If you do work on an object in one third of the usual time, your power output is ..... A) One third of the usual power output. B) The same as the usual power output. C) Three times the usual power output. D) Impossible to predict. Show Answer Correct Answer: C) Three times the usual power output. 4. What is the formula for calculating power? A) P = F * d. B) P = m * a. C) P = W / t. D) P = E / v. Show Answer Correct Answer: C) P = W / t. 5. All of the following are an example of thermal energy except for: A) Pencil. B) Fire. C) Heater. D) Stove. Show Answer Correct Answer: A) Pencil. 6. True or False:Fossil Fuels provide 95% of our world's energy demands. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. The equation for POWER is A) Power = mass x time. B) Power = work / time. C) Power = time / work. D) Power = work x time. Show Answer Correct Answer: B) Power = work / time. 8. If 360 Joules of work are needed to move a crate a distance of 4 meters in 5 sec, what is the power used? A) 72 W. B) 144 W. C) 60 W. D) 36 W. Show Answer Correct Answer: A) 72 W. 9. What is the significance of Joules in physics? A) It measures velocity. B) It measures work and energy. C) It measures power. D) It measures force. Show Answer Correct Answer: B) It measures work and energy. 10. What are the units of measurements of power? A) Horsepower. B) J (Joules). C) W (Watts). D) N (Newtons). Show Answer Correct Answer: C) W (Watts). 11. S.I unit of energy is A) A. Watt. B) B. Kilowatt. C) C. Joule. D) None of the above. Show Answer Correct Answer: C) C. Joule. 12. The gravitational potential energy of an object is at its maximum when: A) The object is at rest. B) The object is at the lowest point. C) The object is at the highest point. D) The object is in motion. Show Answer Correct Answer: C) The object is at the highest point. 13. What is energy of motion? A) Electrical energy. B) Light energy. C) Kinetic energy. D) Potential energy. Show Answer Correct Answer: C) Kinetic energy. 14. Which of these is a renewable energy source? A) Solar energy. B) Oil. C) Coal. D) Natural gas. Show Answer Correct Answer: A) Solar energy. 15. As the velocity of an object decreases its KE will ..... A) Increase. B) Decrease. C) Stay the same. D) None of the above. Show Answer Correct Answer: B) Decrease. 16. A long jumper with a mass of 60 kg approaches the take-off board with a velocity of 11m.s-1. What is their linear kinetic energy? A) 3630 J. B) 1047.2 J. C) 1045.4 J. D) 3330 J. Show Answer Correct Answer: A) 3630 J. 17. In a factory four bulbs of 100 W each and five fans of 110 W each operate for 12 hours daily. Calculate the units of electricity consumed? A) 9 units. B) 15.5 units. C) 12.2 units. D) 11.4 units. Show Answer Correct Answer: D) 11.4 units. 18. Hector carries his Playstation 5 to his car. Is this 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: C) No Work. 19. What is the work done when a force of 0 N acts on an object? A) Negative work. B) Positive work. C) Infinite work. D) Zero work. Show Answer Correct Answer: D) Zero work. 20. The sum of kinetic and potential energy is- A) Mechanical Energy. B) Light energy. C) Heat Energy. D) None of the above. Show Answer Correct Answer: A) Mechanical Energy. 21. Which is the correct unit for expressing gravitational potential energy? A) Joule. B) Newton. C) M/s$^{2}$. D) Meter. Show Answer Correct Answer: A) Joule. 22. What is one advantage of fossil fuels? A) They are cheap. B) They are good for the environment. C) All the above. D) None of the above. Show Answer Correct Answer: A) They are cheap. 23. Which form of energy is needed by plants to make their own food? A) Heat. B) Potential. C) Light. D) Kinetic. Show Answer Correct Answer: C) Light. 24. What is the formula to calculate power? A) P = W x t. B) P = W / t. C) P = W + t. D) P = F x d. Show Answer Correct Answer: B) P = W / t. 25. According to the work-energy theorem, a net work causes A) A change in kinetic energy. B) A change in potential energy. C) A kinetic energy. D) None of the above. Show Answer Correct Answer: A) A change in kinetic energy. ← 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