This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 4 Work – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 24 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which type of energy involves the potential of a chemical substance to undergo a transformation through a chemical reaction or to transform other chemical substances? A) Electrical Energy. B) Thermal Energy. C) Nuclear Energy. D) Chemical Energy. Show Answer Correct Answer: D) Chemical Energy. 2. Find the kinetic energy of a 1500-N car moving at 15 m/s? Pay attention to units! A) 1 kj. B) 25 kj. C) 17 kj. D) 8 kj. Show Answer Correct Answer: C) 17 kj. 3. If ball of mass 10kg is dropped from height of 10m then the work done by air resistance is A) 100 J. B) -100J. C) 0. D) 1000 J. Show Answer Correct Answer: C) 0. 4. This is the energy due to the splitting of atoms. A) Nuclear. B) Chemical. C) Mechanical. D) Light / Radiant. Show Answer Correct Answer: A) Nuclear. 5. The SI Unit for Energy is A) Joule. B) Newton. C) Calorie. D) Watt. Show Answer Correct Answer: A) Joule. 6. If 200 J of work is done in 4 seconds, what is the power? A) 25 W. B) 50 W. C) 75 W. D) 100 W. Show Answer Correct Answer: B) 50 W. 7. If you use 30 J of energy to move an object, you have done ..... J of work. A) 3. B) 10. C) 30. D) 0. Show Answer Correct Answer: C) 30. 8. Carrying a baby A) Work. B) No Work. C) All the above. D) None of the above. Show Answer Correct Answer: B) No Work. 9. Claire carries a 50 N box horizontally across a 10 m room. How much work did she do on the box? A) 0 J, because the force is not parallel to the displacement. B) 5 J. C) 0.2 J. D) 500 J. Show Answer Correct Answer: A) 0 J, because the force is not parallel to the displacement. 10. Which one of the following systems is there a decrease in gravitational potential energy? A) A boy stretches a horizontal spring. B) A girl jumps down from a bed. C) A crate rests at bottom of an inclined plane. D) A car ascends a steep hill. Show Answer Correct Answer: B) A girl jumps down from a bed. 11. What is the work output of a machine that has a work input of 2, 800 Joules and an efficiency of 90%? A) 25200 J. B) 2520 J. C) 0.0082J. D) None of the above. Show Answer Correct Answer: B) 2520 J. 12. On a force versus change in position graph, the area under the curve is a representation of: A) Force. B) Position. C) KE. D) PE. E) Work. Show Answer Correct Answer: E) Work. 13. Work done by a frictional force is A) Negative. B) Positive. C) Zero. D) None of the above. Show Answer Correct Answer: A) Negative. 14. Which form of energy does a battery store? A) Nuclear energy. B) Chemical energy. C) Thermal energy. D) Electrical energy. Show Answer Correct Answer: B) Chemical energy. 15. What type of energy is possessed by a compressed spring A) Chemical energy. B) Nuclear energy. C) Potential energy. D) Kinetic energy. Show Answer Correct Answer: C) Potential energy. 16. A wheel and axle is used to used to raise a load of 280N by a force 40N applied to the rim of the wheel. if the radii of the wheel and axle are 70cm and 5cm respectively, find the efficiency of the system. A) 50%. B) 14%. C) 10%. D) 70%. Show Answer Correct Answer: A) 50%. 17. Calculate the work done if a force of 50 N moves an object 4 meters in the direction of the force. A) 150 J. B) 100 J. C) 250 J. D) 200 J. Show Answer Correct Answer: D) 200 J. 18. If an object has a mass of 2 kg and is moving at a speed of 3 m/s, what is its kinetic energy? A) 15 Joules. B) 12 Joules. C) 6 Joules. D) 9 Joules. Show Answer Correct Answer: D) 9 Joules. 19. As a falling apple approaches the ground, its potential energy A) Increases. B) Decreases. C) Stays the same. D) None of the above. Show Answer Correct Answer: B) Decreases. 20. What is a collision in which two particles move together after collision is called? A) Completely elastic collision. B) Completely inelastic collision. C) Incomplete elastic collision. D) Incomplete inelastic collision. Show Answer Correct Answer: B) Completely inelastic collision. 21. The energy required to accelerate a car from rest to 10 m/s is E. What energy will be required to acceleratethe car from 10 m/s to 20 m/s? A) E. B) 2E. C) 3E. D) 4E. Show Answer Correct Answer: C) 3E. 22. Energy stored in a compressed spring is A) Kx. B) Kx$^{2}$. C) 1/2 kx$^{2}$. D) Mgh. Show Answer Correct Answer: C) 1/2 kx$^{2}$. 23. How much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s? A) 27 J. B) 18 J. C) 9 J. D) 2 J. Show Answer Correct Answer: A) 27 J. 24. If you pull at an angle instead of in the direction in which the object moves, MORE of your force does work. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 25. Using wind power to make electricity is an example of A) Heat Energy. B) Solar Energy. C) Wind Energy. D) Light Energy. Show Answer Correct Answer: C) Wind 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