This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 4 Work – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. According to Einstein, energy is another form of ..... A) Motion. B) Speed. C) Matter. D) Light$^{2}$. Show Answer Correct Answer: C) Matter. 2. What is the formula for K.E.? A) (1/2)mv. B) (1/2)m$^{2}$v. C) (1/2)mv$^{2}$. D) Mv$^{2}$. Show Answer Correct Answer: C) (1/2)mv$^{2}$. 3. What is the value of potential energy if the height of object is zero A) Positive. B) Negative. C) Zero. D) Infinite. Show Answer Correct Answer: C) Zero. 4. When no friction or external applied forces are present, the total mechanical energy of a system will A) Increase. B) Decrease. C) Remain Constant. D) None of the above. Show Answer Correct Answer: C) Remain Constant. 5. What type of energy represents the sum of the KE and PE that a moving object has? A) Chemical energy. B) Total mechanical energy. C) Electromagnetic energy. D) Electrical energy. Show Answer Correct Answer: B) Total mechanical energy. 6. What is the equation for work? A) W = mass * acceleration. B) W = force * distance. C) W = force/distance. D) W = speed/time. Show Answer Correct Answer: B) W = force * distance. 7. Light is a form of ..... energy. A) Sound. B) Electromagnetic. C) Thermal. D) Mechanical. Show Answer Correct Answer: B) Electromagnetic. 8. T/F:Newton's 3rd law of motion says that when objects interact, they apply forces to each other of equal magnitude and opposite direction. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. What is the energy released during nuclear fission or fusion, especially when used to generate electricity? A) Thermal Energy. B) Electrical Energy. C) Nuclear Energy. D) Chemical Energy. Show Answer Correct Answer: C) Nuclear Energy. 10. What is designed to change electrical energy into kinetic energy? A) Light bulb. B) Heater. C) Fan. D) Radio. Show Answer Correct Answer: C) Fan. 11. A spring with a spring constant of 200N/m is compressed by 0.1 m. What is the elastic potential energy? A) 0.5 J. B) 1 J. C) 2 J. D) 10 J. Show Answer Correct Answer: B) 1 J. 12. A boy lifted his school bag of mass 3 kg from the floor to his lap through a height of 0.5 m. What is the gravitational potential energy gained by the bag? A) 1.5 J. B) 15 J. C) 150 J. D) 1500 J. Show Answer Correct Answer: B) 15 J. 13. Which of the following is the correct formula for calculating work done when a force is applied? A) $W = F \times d$. B) $W = m \times g$. C) $W = \frac{1}{2}mv^2$. D) $W = mgh$. Show Answer Correct Answer: A) $W = F \times d$. 14. This is the type of energy that is stored for later use. A) Kinetic energy. B) Potential energy. C) Mechanical. D) Electrical energy. Show Answer Correct Answer: B) Potential energy. 15. What is the key word used across the three laws of motion to indicate a force? A) Motion. B) Work. C) Displacement. D) Action. Show Answer Correct Answer: D) Action. 16. How is gravitational potential energy calculated? A) Mass times velocity squared. B) Force times distance. C) Half times mass times velocity squared. D) Mass times gravity times height. Show Answer Correct Answer: D) Mass times gravity times height. 17. What is the unit of measure for power? A) Watt. B) Joule. C) Meters. D) Newtons. Show Answer Correct Answer: A) Watt. 18. A stone of mass 0.250 kg is thrown upwards. Its velocity decrease from 20 m/s to 10 m/s. The change in kinetic energy of the stone is A) 1.25 J. B) 3.75 J. C) 37.5 J. D) 75 J. Show Answer Correct Answer: C) 37.5 J. 19. The SI unit of energy is ..... ? A) Newton metre (Nm). B) Newton per metre (N/m). C) Joule (J). D) Joule per metre (J/m). Show Answer Correct Answer: C) Joule (J). 20. "An arrow released from a bow flying straight toward the target" . In what type of mechanical energy does it fall? A) Potential Energy. B) Kinetic Energy. C) Both. D) None of the above. Show Answer Correct Answer: B) Kinetic Energy. 21. A 6.0-kg cat runs after the mouse at 10.0 m/s. What is the cat's kinetic energy? A) 30 J. B) 60 J. C) 300 J. D) 600 J. Show Answer Correct Answer: C) 300 J. 22. Qn 5-When is the kinetic energy of an object maximum in a fall? A) When object is at its maximum height. B) After the object rebounds. C) Just before the object touches the ground. D) None of the above. Show Answer Correct Answer: C) Just before the object touches the ground. 23. A force of 10N displace the body by 6m in 3 seconds. The power of the agency applying the force is: A) 1.8 W. B) 5 W. C) 180W. D) None of above. Show Answer Correct Answer: D) None of above. 24. Watt is the SI unit of- A) Power. B) Force. C) Work. D) None of the above. Show Answer Correct Answer: A) Power. 25. Force exerted on an object that causes it to moved A) Force. B) Energy. C) Work. D) Power. Show Answer Correct Answer: C) Work. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books