This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 4 Work – Quiz 29 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 29 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following equations represents kinetic energy? A) $KE = \frac{1}{2}mv^2$. B) $KE = mgh$. C) $KE = \frac{1}{2}kx^2$. D) $KE = Fd$. Show Answer Correct Answer: A) $KE = \frac{1}{2}mv^2$. 2. A car and ball have equal linear momentum. Which of the following statement is true ..... A) Car has more kinetic energy than that of ball. B) Ball has more kinetic energy than that of car. C) Both car and ball have same kinetic energy. D) None of these. Show Answer Correct Answer: B) Ball has more kinetic energy than that of car. 3. Which type of energy is related to the temperature of a substance or system, involving moving or vibrating molecules? A) Electrical Energy. B) Thermal Energy. C) Chemical Energy. D) Mechanical Energy. Show Answer Correct Answer: B) Thermal Energy. 4. A weight lifter picks up a very heavy barbell. When he is lifting the barbell ..... A) He does no work. B) He does work. C) He does potential work. D) None of the above. Show Answer Correct Answer: B) He does work. 5. What is the formula for calculating the change in Kinetic Energy? A) $\Delta$KE = KE final + KE initial. B) $\Delta$KE = KE final-KE initial. C) $\Delta$KE = KE initial-KE final. D) $\Delta$KE = KE final * KE initial. Show Answer Correct Answer: B) $\Delta$KE = KE final-KE initial. 6. Work could be zero if A) Angle =0. B) F=d. C) F= negative. D) Angle= 90. Show Answer Correct Answer: D) Angle= 90. 7. What is the energy of an object due to its position or state called? A) Potential energy. B) Mechanical energy. C) Thermal energy. D) Kinetic energy. Show Answer Correct Answer: A) Potential energy. 8. You move a 12-newton box up a 6-meter ramp. In order to find out how much power you created, what would you need to know? A) The mass of the box. B) The slope of the ramp. C) The direction the box moved. D) How long the task took. Show Answer Correct Answer: D) How long the task took. 9. How is power calculated in terms of work and time? A) Power = Time / Work. B) Power = Work / Time. C) Power = Work-Time. D) Power = Work + Time. Show Answer Correct Answer: B) Power = Work / Time. 10. Which of the following is defined as work done per unit time?. A) Power. B) Work. C) Energy. D) Force. Show Answer Correct Answer: A) Power. 11. One horse power is equal to A) 1000W. B) 746 W. C) 764 W. D) None of the above. Show Answer Correct Answer: B) 746 W. 12. How does increasing the speed of an object affect its kinetic energy? A) Kinetic energy remains constant regardless of speed changes. B) Increasing the speed of an object decreases its kinetic energy. C) Kinetic energy is only affected by the mass of the object. D) Increasing the speed of an object increases its kinetic energy exponentially. Show Answer Correct Answer: D) Increasing the speed of an object increases its kinetic energy exponentially. 13. Which energy resource is not renewable? A) Geothermal. B) Nuclear. C) Solar. D) Wind. Show Answer Correct Answer: A) Geothermal. 14. Which has a greater impact on KE? A) Mass. B) Velocity. C) All the above. D) None of the above. Show Answer Correct Answer: B) Velocity. 15. Work done is maximum when ..... A) Force is maximum. B) Force and displacement are in opposite direction. C) No force acts on the object. D) When scalar product of force and displacement is maximum. Show Answer Correct Answer: D) When scalar product of force and displacement is maximum. 16. A force F = 2i+3j-4k acts ona body and moves the Body from A(6, 2-1) to B (4 3 3) . Calculate the work done and the angle between the Force and the distance A) 25J and 140$^\circ$. B) 15J and 80$^\circ$. C) -17J and 134.6J. D) -25J and 155J. Show Answer Correct Answer: C) -17J and 134.6J. 17. The capacity to do work is called A) Force. B) Energy. C) Work. D) Power. Show Answer Correct Answer: B) Energy. 18. Potential energy is the energy an object has because of its ..... A) Shape. B) Condition. C) Position. D) All of the above. Show Answer Correct Answer: D) All of the above. 19. The kinetic energy of a golf ball is measured to be 143.3J. If the golf ball has a mass of about 47g, what is its speed? A) 2.46 m/s. B) 3367.55 m/s. C) 1.52 m/s. D) 6.09 m/s. Show Answer Correct Answer: A) 2.46 m/s. 20. Can energy be created? A) No. B) Yes. C) All the above. D) None of the above. Show Answer Correct Answer: A) No. 21. "A yo-yo released and recoiled up" . 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: C) Both. 22. Units of force are A) Netwons. B) Grams. C) Joules. D) Meters. Show Answer Correct Answer: A) Netwons. 23. According to the Law of Conservation of Energy, energy cannot be ..... or ..... A) Destroyed, destroyed. B) Created, saved. C) Created, destroyed. D) Lost, found. Show Answer Correct Answer: C) Created, destroyed. 24. A basketball is bounced on a court. What is the energy transformation in this scenario? A) Kinetic Energy to Chemical Potential energy. B) Electrical Potential Energy to Kinetic Energy. C) Elastic Potential Energy to Kinetic Energy. D) Nuclear Potential Energy to Kinetic Energy. Show Answer Correct Answer: C) Elastic Potential Energy to Kinetic Energy. 25. Energy can be transformed from one form into another, but the total amount of energy never changes. A) Work-energy theorem. B) Law of conservation of energy. C) Newton's second law of motion. D) King's theorem of energy. Show Answer Correct Answer: B) Law of conservation of 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