This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part I > 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 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Geothermal energy uses ..... to produce electricity. A) Corn. B) Steam wells. C) The wind. D) The sun. Show Answer Correct Answer: B) Steam wells. 2. This is the rate at which work is done. A) Energy. B) Power. C) Force. D) None of the above. Show Answer Correct Answer: B) Power. 3. Kinetic energy is the energy of an object that is due to the object's ..... A) Motion. B) Momentum. C) Inertia. D) Position. Show Answer Correct Answer: A) Motion. 4. What is the ability to do work called? A) Power. B) Distance. C) Force. D) Energy. Show Answer Correct Answer: D) Energy. 5. The standard international unit for energy A) Kilogram. B) M/s/s. C) Joule. D) Newton. Show Answer Correct Answer: C) Joule. 6. An object has 12.4 J of potential energy and 23.5 J of kinetic energy. What is the mechanical energy of the system? A) 11.1 J. B) 291.4 J. C) 1.895 J. D) 35.9 J. Show Answer Correct Answer: D) 35.9 J. 7. What is the C.G.S. unit of energy? A) Joule. B) Erg. C) Newton. D) Watt. Show Answer Correct Answer: B) Erg. 8. ..... is the energy stored in a body orsystem because of its position, shape and state. A) Kinetic energy. B) Energy due to spring. C) Mechanical energy. D) Potential energy. Show Answer Correct Answer: D) Potential energy. 9. A 1000-watt microwave oven is used for 5 minutes. How much energy does it consume? A) 30, 000 joules. B) 3000 joules. C) 0.5 joules. D) 300, 000 joules. Show Answer Correct Answer: D) 300, 000 joules. 10. Which of the following is a unit for energy? A) Newtons. B) Joules. C) Watts. D) Meters. Show Answer Correct Answer: B) Joules. 11. In which scenario is Charlotte doing work? A) Charlotte carries her books to her next class. B) Charlotte picks up her books from her desk. C) All the above. D) None of the above. Show Answer Correct Answer: B) Charlotte picks up her books from her desk. 12. If a car accelerates from rest to a speed of 20 m/s, how does its kinetic energy change? A) The kinetic energy increases from 0 to 200m, where m is the mass of the car. B) The kinetic energy decreases to 0. C) The kinetic energy remains constant at 20 m/s. D) The kinetic energy increases to 100m, where m is the mass of the car. Show Answer Correct Answer: A) The kinetic energy increases from 0 to 200m, where m is the mass of the car. 13. Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power. A) Person A. B) Person B. C) All the above. D) None of the above. Show Answer Correct Answer: A) Person A. 14. What is the work done when a force of 10 N moves an object 3 meters in the direction of the force? A) 30 J. B) 3 J. C) 30 N. D) 3 N. Show Answer Correct Answer: A) 30 J. 15. If 100 J of work is done in 5 seconds, what is the power output? A) 20 W. B) 25 W. C) 10 W. D) 50 W. Show Answer Correct Answer: A) 20 W. 16. What are the units of measurement of work? A) N (Newtons). B) Kg. C) Meters. D) J (Joules). Show Answer Correct Answer: D) J (Joules). 17. A machine does 500 J of work in 5 seconds. What is its power output? A) 100 W. B) 50 W. C) 500 W. D) 2500 W. Show Answer Correct Answer: A) 100 W. 18. The unit for work (aka Newton-meter) A) Work. B) Power. C) Watt. D) Joule. Show Answer Correct Answer: D) Joule. 19. Based on the table below, which machine has the greater power ouput?Machine A-(amount of work)-100 J-Time-4 sMachine B-(amount of work)-500 J-Time-10 sMachine C-(amount of work)-350 J-Time-5 sMachine D-(amount of work)-450 J-Time-15 s A) Machine B. B) Machine A. C) Machine C. D) Machine D. Show Answer Correct Answer: C) Machine C. 20. A girl carries a heavy suitcase quickly up a flight of stairs. A boy of the same weight carries the same suitcase slowly up the flight of stairs. Which statement is true? A) The girl did less work and had less power than the boy. B) The girl had less power than the boy. C) The girl did more work and had more power than the boy. D) The girl had more power than the boy. Show Answer Correct Answer: D) The girl had more power than the boy. 21. Which of the following is true regarding the Principle of Conservation of Energy? A) Energy can be created or destroyed. B) Total energy in a system stays the same. C) Energy cannot be transformed from one kind to another. D) None of the above. Show Answer Correct Answer: B) Total energy in a system stays the same. 22. A wooden block of mass (m1) kg accelerates at 10ms when a force of 5N acts on it. Another block of mass(m2) kg accelerates at 20ms when the same force acts on it. If both the blocks are tied together and the same force acts on their combination the acceleration will be about A) 4.67 ms. B) 6.67 ms. C) 1.67 ms. D) 5.67 ms. Show Answer Correct Answer: B) 6.67 ms. 23. When a body Falls freely then the ..... A) Its potential energy is converted into kinetic energy. B) Its mechanical energy is converted into heat energy. C) Its kinetic energy is converted into potential energy. D) None of the above. Show Answer Correct Answer: A) Its potential energy is converted into kinetic energy. 24. A hammer with 10 J of kinetic energy hits a nail and pushes it 5.0 mm into a plank. Both the hammer and nail come to rest after the collision. What is the approximate average force that acts on the nail while it moves through 5.0 mm? A) 2000 N. B) 0.050 N. C) 2.0 N. D) 50 N. Show Answer Correct Answer: A) 2000 N. 25. 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) $KE = \frac{1}{2}mv^2$. 26. 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. 27. Which type of energy is related to the temperature of a substance or system, involving moving or vibrating molecules? A) Chemical Energy. B) Thermal Energy. C) Mechanical Energy. D) Electrical Energy. Show Answer Correct Answer: B) Thermal Energy. 28. 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. 29. What is the formula for calculating the change in Kinetic Energy? A) $\Delta$KE = KE final * KE initial. B) $\Delta$KE = KE initial-KE final. C) $\Delta$KE = KE final + KE initial. D) $\Delta$KE = KE final-KE initial. Show Answer Correct Answer: D) $\Delta$KE = KE final-KE initial. 30. Work could be zero if A) F= negative. B) Angle= 90. C) F=d. D) Angle =0. Show Answer Correct Answer: B) Angle= 90. 31. 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. 32. 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. 33. How is power calculated in terms of work and time? A) Power = Work / Time. B) Power = Work + Time. C) Power = Work-Time. D) Power = Time / Work. Show Answer Correct Answer: A) Power = Work / Time. 34. Which of the following is defined as work done per unit time?. A) Energy. B) Force. C) Power. D) Work. Show Answer Correct Answer: C) Power. 35. 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. 36. 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. 37. Which energy resource is not renewable? A) Geothermal. B) Solar. C) Nuclear. D) Wind. Show Answer Correct Answer: A) Geothermal. 38. 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. 39. 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. 40. 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. 41. The capacity to do work is called A) Energy. B) Force. C) Power. D) Work. Show Answer Correct Answer: A) Energy. 42. 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. 43. 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) 1.52 m/s. B) 3367.55 m/s. C) 2.46 m/s. D) 6.09 m/s. Show Answer Correct Answer: C) 2.46 m/s. 44. Can energy be created? A) No. B) Yes. C) All the above. D) None of the above. Show Answer Correct Answer: A) No. 45. "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. 46. Units of force are A) Grams. B) Netwons. C) Meters. D) Joules. Show Answer Correct Answer: B) Netwons. 47. According to the Law of Conservation of Energy, energy cannot be ..... or ..... A) Destroyed, destroyed. B) Created, saved. C) Lost, found. D) Created, destroyed. Show Answer Correct Answer: D) Created, destroyed. 48. A basketball is bounced on a court. What is the energy transformation in this scenario? A) Kinetic Energy to Chemical Potential energy. B) Nuclear Potential Energy to Kinetic Energy. C) Electrical Potential Energy to Kinetic Energy. D) Elastic Potential Energy to Kinetic Energy. Show Answer Correct Answer: D) Elastic Potential Energy to Kinetic Energy. 49. Energy can be transformed from one form into another, but the total amount of energy never changes. A) Newton's second law of motion. B) Law of conservation of energy. C) King's theorem of energy. D) Work-energy theorem. Show Answer Correct Answer: B) Law of conservation of energy. 50. A bow is drawn so that it has 40 J of potential energy. When released, the arrow will theoretically have a kinetic energy that is A) Less than 40 J. B) Impossible to predict. C) 40 J. D) More than 40 J. Show Answer Correct Answer: C) 40 J. 51. At the top of the highest point/peak on a roller coaster, how is the energy split between potential and kinetic energy? A) 50% PE, 50% KE. B) 100% PE, 0% KE. C) 0% PE, 100% KE. D) 25% PE, 75% KE. Show Answer Correct Answer: B) 100% PE, 0% KE. 52. An object has 1000 J of potential energy at top of a building 10 m high. If this object dropped from the top of this building then at a height of 5 m from ground surface, which of the statement will be true ..... A) Object Possess K.E = 500 J. B) Object possess P.E = 1000 J. C) Object Possess K.E = O. D) Object possess K.E = 1000 J. Show Answer Correct Answer: A) Object Possess K.E = 500 J. 53. Power is measured in ..... A) Joules. B) Watts. C) Newtons. D) Meters. Show Answer Correct Answer: B) Watts. 54. How much power is required to raise a 30 kg crate a vertical distance of 6 m in a time of 4 seconds? A) 120 W. B) 52.5 W. C) 385 W. D) 450 W. E) 525 W. Show Answer Correct Answer: D) 450 W. 55. What is the unit of average power in physics? A) Meters. B) Newtons. C) Watts. D) Joules. Show Answer Correct Answer: C) Watts. 56. Wind is able to turn turbine blades which spin a generator. The generator converts mechanical energy into electrical energy. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 57. Which movement will require the greatest amount of work to be done? A) A force of 15N moving an object a distance of 3.0m. B) A force of 15N moving an object a distance of 5.0m. C) A force of 10N moving an object a distance of 3.0m. D) A force of 10N moving an object a distance of 5.0m. Show Answer Correct Answer: B) A force of 15N moving an object a distance of 5.0m. 58. A man throws a baseball doing 500 J of work in 2.5 seconds. How much power did he have? A) 200 W. B) 200 J. C) 1250 W. D) 12500. Show Answer Correct Answer: A) 200 W. 59. What form of energy is present when a bow of an archer is drawn back? A) Potential energy. B) Mechanical energy. C) Chemical energy. D) Kinetic energy. Show Answer Correct Answer: A) Potential energy. 60. The Conservation law of Energy states that: "Energy cannot be ..... or ..... , it can only change from one form to another" . Fill in the blanks. A) Moved-changed. B) Moved-transformed. C) Created-destroyed. D) None of the above. Show Answer Correct Answer: C) Created-destroyed. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books