This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 4 Work – Quiz 26 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 26 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If a charging elephant has kinetic energy, it must also have A) Potential energy. B) Momentum. C) Work. D) All of these. Show Answer Correct Answer: B) Momentum. 2. One of the tallest radio towers is in Fargo, North Dakota. The tower is 639m tall, or about 44 percent taller than the Sears Tower in Chicago. If a bird lands on top of the radio tower, so that the gravitational potential energy associated with the bird is 2033J, what is its mass? A) 3.08 kg. B) 31.17 kg. C) 0.32 kg. D) 13.13 kg. Show Answer Correct Answer: C) 0.32 kg. 3. What is the power of an agent that does 200 J of work in 10 seconds? A) 10 W. B) 20 W. C) 2 W. D) 200 W. Show Answer Correct Answer: B) 20 W. 4. When a force (F) is applied to an object and causes the location of the point of application to displace in space ($\Delta$d). Therefore, what is the formula for Work? A) W = F / $\Delta$d. B) W = F x $\Delta$d. C) W = $\Delta$d-F. D) W = F x distance. Show Answer Correct Answer: B) W = F x $\Delta$d. 5. "An object in motion will stay in motion" is which of Newton's laws? A) Newton's first law of motion. B) Newton's second law of motion. C) Newtons third law of motion. D) None of these. Show Answer Correct Answer: A) Newton's first law of motion. 6. A group of students pushing against a wall that is not moving. Is work done? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 7. Raising an auto in a service station requires work. Raising it in half the time requires ..... A) Half the power. B) Twice the power. C) The same power. D) Four times the power. Show Answer Correct Answer: B) Twice the power. 8. What is the renewable source of energy that comes from extreme heat within the Earth? A) Solar. B) Hydroelectric. C) Geothermal. D) Biomass. Show Answer Correct Answer: C) Geothermal. 9. In which of following cases work is said to be done? A) Holding a heavy object still. B) Pushing a wall. C) Lifting a book off the ground. D) Sitting and reading a book. Show Answer Correct Answer: C) Lifting a book off the ground. 10. What is the SI unit for power? A) Joules (J). B) Watts (W). C) Newton-metres (N m). D) Newtons (N). Show Answer Correct Answer: B) Watts (W). 11. What is the efficiency of a machine if 55.3 J of work are done on the machine, but only 14.3 J is produced by the 1machine? A) 0.25 J. B) 26%. C) 386%. D) 3.86 J. Show Answer Correct Answer: B) 26%. 12. Force is measured using which unit? A) Meters. B) Kilograms. C) Newtons. D) Joules. Show Answer Correct Answer: C) Newtons. 13. If the amount of time to takes to move a box up the stairs decreases, what happens to power? A) Decreases. B) Increases. C) Stays the same. D) None of the above. Show Answer Correct Answer: B) Increases. 14. How do we express the total amount of energy a moving object has? A) KE x PE. B) KE + PE. C) KE-PE. D) KE / PE. Show Answer Correct Answer: B) KE + PE. 15. A shopping cart has a mass of 40 kg is pushed 10 m with a force of 20 N. How much work is done on the cart? A) 200 J. B) 400 J. C) 800 J. D) 8000 J. Show Answer Correct Answer: A) 200 J. 16. An object is lifted vertically by a motor. In which example is the power produced the greatest? A) Lifting it a shorter distance in a longer time. B) Lifting it the same distance in a longer time. C) Lifting it a shorter distance in the same time. D) Lifting it the same distance in a shorter time. Show Answer Correct Answer: D) Lifting it the same distance in a shorter time. 17. Which of the following quantities is/are conserved during perfectly inelastic collision? A) Kinetic energy. B) Momentum. C) Both A and B. D) Neither A nor B. Show Answer Correct Answer: B) Momentum. 18. What is equal to the work done by a force of one newton when its point of application moves through a distance of one meter in the direction of the force? A) Watt. B) Joule. C) Efficiency. D) Mechanical Advantage. Show Answer Correct Answer: B) Joule. 19. Fred kicks a ball with a force of 20N to George, who is 5M away. How much work was done to the ball? A) 25J. B) 100J. C) 4J. D) 75J. Show Answer Correct Answer: B) 100J. 20. Assertion:A body cannot have energy without having momentum but it can have momentum without having energy.Reason:Momentum and Energy have same dimensions. 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. 21. How much work is produced when 350 N is used to move a car 5 m (W=Fd)? A) 70 J. B) 1750 J. C) 355 J. D) 175 J. Show Answer Correct Answer: B) 1750 J. 22. ..... is the ability to do work, or the ability to exert a force and make something move. A) Force. B) Power. C) Velocity. D) Energy. Show Answer Correct Answer: D) Energy. 23. A rock is thrown up into the air. What type of energy does it have at its maximum height? A) Gravitational potential energy. B) Kinetic energy. C) Elastic potential energy. D) Thermal energy. Show Answer Correct Answer: A) Gravitational potential energy. 24. ..... is stored energy. A) Potential. B) Kinetic. C) None of the above. D) All of the above. Show Answer Correct Answer: A) Potential. 25. A car of mass 1000 kg is traveling at a speed of 20 m/s. What is its kinetic energy? A) 200, 000 J. B) 20, 000 J. C) 10, 000 J. D) 400, 000 J. Show Answer Correct Answer: A) 200, 000 J. ← 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