This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 4 Work – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How are energy and motion related? A) Energy is needed for motion. B) Motion is needed for energy. C) Motion is energy transferred. D) None of the above. Show Answer Correct Answer: A) Energy is needed for motion. 2. Unit for work done is A) Newton. B) Joule. C) Meter. D) Second. Show Answer Correct Answer: B) Joule. 3. Ethan is lifting weights at the gym. He notices that the rate at which he is doing work is called what? A) Potential energy. B) Kinetic energy. C) Work. D) Power. Show Answer Correct Answer: D) Power. 4. If you push against a wall and it doesn't move, how much work is done? A) A small amount of work. B) Maximum work. C) Zero work. D) Negative work. Show Answer Correct Answer: C) Zero work. 5. What is the unit of work? A) Pascal. B) Watt. C) Newton. D) Joule. Show Answer Correct Answer: D) Joule. 6. A moving lorry has kinetic energy. When the lorry stops, its kinetic energy is zero. This is because the kinetic energy A) Is destroyed. B) Is used to stop the lorry. C) Is converted to gravitational potential energy. D) Is converted to heat energy as result of friction. Show Answer Correct Answer: D) Is converted to heat energy as result of friction. 7. At which angle between F and d the is the work negative? A) Angle =0. B) Angle=90. C) Angle <90. D) Angle >90. Show Answer Correct Answer: D) Angle >90. 8. In order for work to be done, what must be true? A) Force acts in the same direction as the distance traveled. B) Force and distance are in opposite directions. C) Force is greater than distance. D) Distance is greater than force. Show Answer Correct Answer: A) Force acts in the same direction as the distance traveled. 9. I.Calculate the potential energy of an athlete of 73kg that is 1.5m above the ground. A) 3630 J. B) 1074.2 J. C) 1045.4 J. D) 7300 J. Show Answer Correct Answer: B) 1074.2 J. 10. A rock is thrown up into the air. What type of energy does it have as it is being thrown? A) Gravitational potential energy. B) Kinetic energy. C) Elastic potential energy. D) Thermal energy. Show Answer Correct Answer: B) Kinetic energy. 11. When did an object have more kinetic energy? A) When the time given on an object doubled. B) When the mass of an object doubled. C) When the mass of an object becomes half. D) None of the above. Show Answer Correct Answer: B) When the mass of an object doubled. 12. According to which law of energy, energy can't be created or destroyed? A) First law of motion. B) The law of tacos. C) Laws of Energy. D) Law of conservation of energy. Show Answer Correct Answer: D) Law of conservation of energy. 13. A 60 kg person is suspended 10 m above the air in amusement park ride. How much potential energy does he have? A) 588 J. B) 5, 880 J. C) 5.880 J. D) 580 J. Show Answer Correct Answer: B) 5, 880 J. 14. It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box? A) 200 J. B) 20.0J. C) 2 J. D) 200 N. Show Answer Correct Answer: A) 200 J. 15. Stored energy is called ..... energy. A) Kinetic. B) Potential. C) Pacific. D) Safe. Show Answer Correct Answer: B) Potential. 16. Scientists say that "work" is done in the following cases EXCEPT A) Pushing a door. B) Pulling a schoolbag. C) Lifting a pail of water. D) Carrying a chair across the room. Show Answer Correct Answer: D) Carrying a chair across the room. 17. The energy from moving water is called . A) Solar power. B) Hydroelectric power. C) Wind power. D) Fossil fuels . Show Answer Correct Answer: B) Hydroelectric power. 18. Which is the best example that something has kinetic energy? A) A car parked on a steep hill. B) A tennis ball rolling across the court. C) A picture hanging on the wall. D) A piece of coal before it's burned. Show Answer Correct Answer: B) A tennis ball rolling across the court. 19. What is the energy that objects in motion have (in other words, motion energy)? A) Potential energy. B) Kinetic energy. C) Electrical energy. D) Stored chemical energy. Show Answer Correct Answer: B) Kinetic energy. 20. The units of force and length are made three times of their earlier values. Earlier the energy of the system was 81J. what will be the energy of the same system in new units? A) 243. B) 81. C) 9. D) None of above. Show Answer Correct Answer: C) 9. 21. Two balls A and B are dropped from a window. If the mass of ball B is half the mass of ball, the ratio of kinetic energy of ball B to that of ball A just before hitting the ground is A) 0.5. B) 1.0. C) 4.0. D) 2.0. Show Answer Correct Answer: A) 0.5. 22. What is the relationship between work, energy, and power? A) Work is the rate at which energy is transferred. B) Energy is the capacity to do work, and power is the rate at which work is done. C) Power is the energy required to do work. D) Work and energy are the same, but power is different. Show Answer Correct Answer: B) Energy is the capacity to do work, and power is the rate at which work is done. 23. You exert 200 J of work by pulling on an object with 20 N of force. What distance is the object moved? A) .01 m. B) 10 m. C) 10 J. D) 4, 000 m. Show Answer Correct Answer: B) 10 m. 24. A girl weighs 400 N. She runs up a flight of stairs of height 5 m in 4 seconds. Her power is: A) 320 W. B) 400 W. C) 500 W. D) 2 000 W. Show Answer Correct Answer: C) 500 W. 25. What is the SI unit of work? A) Joule. B) Watt. C) Newton. D) Ohm. Show Answer Correct Answer: A) Joule. ← 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