This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 4 Work – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 19 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is the unit of WORK. A) Joule, J. B) Watt, W. C) Newton, N. D) Volt, V. Show Answer Correct Answer: A) Joule, J. 2. If a machine does 1500 J of work in 10 seconds, what is its power output? A) 150 W. B) 1500 W. C) 15 W. D) 1.5 W. Show Answer Correct Answer: A) 150 W. 3. This is the energy of vibrating molecules that move through matter. A) Sound. B) Thermal. C) Mechanical. D) Electrical. Show Answer Correct Answer: A) Sound. 4. What is the gravitational potential energy of a 4kg mass sitting on top of a table 5 m high. ( Take g = 10 ms$^{-2 }$) A) 200 J. B) 100 J. C) 20 J. D) 40 J. Show Answer Correct Answer: A) 200 J. 5. How does the work-energy theorem relate to kinetic energy? A) The work-energy theorem states that energy cannot be created or destroyed. B) The work-energy theorem relates to kinetic energy by stating that the work done on an object results in a change in its kinetic energy. C) The work-energy theorem only applies to potential energy changes. D) Kinetic energy is independent of the work done on an object. Show Answer Correct Answer: B) The work-energy theorem relates to kinetic energy by stating that the work done on an object results in a change in its kinetic energy. 6. A 2kg ball and a 4kg ball are released from rest at the same height at the same time. After falling for 3 seconds, the balls will have different ..... A) Velocities. B) Kinetic Energies. C) Heights. D) None of the above. Show Answer Correct Answer: B) Kinetic Energies. 7. Which energy transformation below matches?Animals eating food? A) Electrical to potential. B) Chemical to kinetic. C) Potential to chemical. D) None of the above. Show Answer Correct Answer: B) Chemical to kinetic. 8. Energy and work are measured in ..... A) Newtons. B) Joules. C) Hertz. D) Kilograms. Show Answer Correct Answer: B) Joules. 9. Which of the following quantities is multiplied to force which results to the work done? A) Accelaration. B) Displacement. C) Distance. D) Velocity. Show Answer Correct Answer: B) Displacement. 10. Susan and Joe push a table 18 meters down a hall by exerting a force of 200 newtons (N). What is the total amount of work done on the table? A) 1600 J. B) 1800 J. C) 2000 J. D) 3600 J. Show Answer Correct Answer: D) 3600 J. 11. The rate at which one form of energy is transformed into another. A) Energy. B) Work. C) Force. D) Power. Show Answer Correct Answer: D) Power. 12. If two cars do the same amount of work but one has more power, what's the difference? A) The more powerful car uses less energy. B) The more powerful car travels a shorter distance. C) The more powerful car completes the work in less time. D) The more powerful car applies less force. Show Answer Correct Answer: C) The more powerful car completes the work in less time. 13. Force multiplied by distance equals ..... A) Work. B) Power. C) All the above. D) None of the above. Show Answer Correct Answer: A) Work. 14. Which one of the following situations will there be an increase in the kinetic energy? A) A stone is thrown upward until it reaches maximum height. B) A ball starts from rest and freely rolls downhill. C) A box is pulled across a rough floor at constant speed. D) A satellite travels in a circular orbit around the Earth at fixed altitude. Show Answer Correct Answer: B) A ball starts from rest and freely rolls downhill. 15. You do work against gravity when you walk up some stairs. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. What is a disadvantage of nuclear power? A) The reactor takes up too much space. B) It produces greenhouse gases. C) It produces radioactive waste. D) None of the above. Show Answer Correct Answer: C) It produces radioactive waste. 17. What power will be delivered in a constant amount of work if the time interval is doubled? A) Doubled. B) Decreased by half. C) Remains the same. D) Decreased by one-fourth. Show Answer Correct Answer: B) Decreased by half. 18. What is the work done by earth in moving around the sun? A) 1000000 J. B) 0 J. C) 1 billion J. D) 2 trillion J. Show Answer Correct Answer: B) 0 J. 19. What is the energy of a moving object called? A) Thermal energy. B) Kinetic energy. C) Mechanical energy. D) Potential energy. Show Answer Correct Answer: B) Kinetic energy. 20. A girl pushes a sled across the snow with a force of 25 N. If she does 250 J of work, how far does she push the sled? A) 1 m. B) 10 m. C) 10 W. D) 10 N/s. Show Answer Correct Answer: B) 10 m. 21. The PE of a boulder on a hill will be ..... the KE of the boulder as it rolls down the hill. A) Greater than. B) Less than. C) The same as. D) None of the above. Show Answer Correct Answer: A) Greater than. 22. What are the units of power? A) Newton (N). B) Watt (W). C) Volt (V). D) Joule (J). Show Answer Correct Answer: B) Watt (W). 23. The value of 10 horsepower in kilowatt is A) 7.457 kW. B) 9.821 kW. C) 3.245 kW. D) 5.678 kW. Show Answer Correct Answer: A) 7.457 kW. 24. The value of work done depends on A) The time of day. B) Force and displacement. C) Various factors such as the force applied, the distance over which the force is applied, and the angle between the force and the displacement. D) The color of the object. Show Answer Correct Answer: C) Various factors such as the force applied, the distance over which the force is applied, and the angle between the force and the displacement. 25. People get energy from the food that they eat and transform that energy as they move. Which energy transformations occur as a student rapidly rubs the palms of his hands together? A) Mechanical to thermal to electrical. B) Chemical to mechanical to thermal. C) Mechanical to chemical to sound. D) Chemical to sound to electrical. Show Answer Correct Answer: B) Chemical to mechanical to thermal. ← 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