This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part I > Class 11 Physics (Part I) Chapter 4 Work – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 19 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An object lifted 10m gains 200 J of potential energy. If the same object is lifted 20m, its potential energy gain is ..... A) Four times as much. B) Twice as much. C) More than 4 times as much. D) Half as much. E) The same. Show Answer Correct Answer: B) Twice as much. 2. A frictionless pendulum of length 3 m swings with an amplitude of 10$^\circ$. At its maximum displacement, the potential energy of the pendulum is 10 J. What is the kinetic energy of the pendulum when its potential energy is 5 J? A) 15 J. B) 6.7 J. C) 3.3 J. D) 5 J. E) 10 J. Show Answer Correct Answer: D) 5 J. 3. When body moves in a circular path and covers quarter part distance 10 m with speed 5 m/s, how much is the work done by an object. A) 2J. B) No work. C) All the above. D) None of the above. Show Answer Correct Answer: B) No work. 4. Your fingers pressing on piano keys and moving along the keyboard. Is work done? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 5. A toy gun has a spring of force constant k. After charging the spring by compressing it through a distance ofx, the toy releases a shot of mass m vertically upwards.Then the shot will travel a vertical height of: A) $\frac{kx^2}{2mg}$. B) $\frac{2mg}{kx^2}$. C) $\frac{mg}{kx^{ }}$. D) $\frac{kx^{ }}{mg}$. E) $\frac{kx^2}{mg}$. Show Answer Correct Answer: A) $\frac{kx^2}{2mg}$. 6. Determine the torque on a force F = I +2j-3k about a point O. The position of the vector With relative to point O is r=2i+3j-k A) 5i+2j+3k. B) -7i+5j+k. C) 5i+2j-3k. D) 7i+5j +k. Show Answer Correct Answer: B) -7i+5j+k. 7. How much work is produced when 350 N is used to move a car 5 m? A) 1750 J. B) 70 J. C) 175 J. D) 355 J. Show Answer Correct Answer: A) 1750 J. 8. What does 'work' specifically mean in physics? A) Studying for exams. B) Force applied over a distance. C) Completing assignments. D) Daily job tasks. Show Answer Correct Answer: B) Force applied over a distance. 9. Which formula is this? A) Potential Energy. B) Mechanical Energy. C) Kinetic Energy. D) Work. Show Answer Correct Answer: C) Kinetic Energy. 10. If force acts on the opposite direction then the displacement is ..... A) Weaker than force. B) Positive. C) Greater than force. D) Negative. Show Answer Correct Answer: D) Negative. 11. A 15 kg object is lifted to a height of 5 meters. What is the gravitational potential energy of the object? (Use $g = 9.8 \, \text{m/s}^2$ A) 980 J. B) 735 J. C) 150 J. D) 75 J. Show Answer Correct Answer: B) 735 J. 12. Which of the following is an example of kinetic energy? A) A car moving at 60 km/h. B) A charged battery. C) A book on a shelf. D) A compressed spring. Show Answer Correct Answer: A) A car moving at 60 km/h. 13. Work done by gravity on a ball thrown upwards is A) Negative. B) Zero. C) Undefined. D) Positive. Show Answer Correct Answer: A) Negative. 14. Who came up with the famous equation E = mc$^{2}$ A) Default. B) Einstein. C) Newton. D) Joule. Show Answer Correct Answer: B) Einstein. 15. What does a joule measure? A) Work. B) Power. C) Time. D) Speed. Show Answer Correct Answer: A) Work. 16. The ability to do work is called ..... A) Power. B) Force. C) Work. D) Energy. Show Answer Correct Answer: D) Energy. 17. By how much will the kinetic energy of a body increase if its speed is doubled? A) 4 time initial value. B) 1 time initial value. C) 3 time initial value. D) 2 time initial value. Show Answer Correct Answer: A) 4 time initial value. 18. Breaking the bonds of between compounds is what form of energy used? A) Chemical. B) Nuclear. C) Radiant. D) Thermal. Show Answer Correct Answer: A) Chemical. 19. If the M.A<1, ..... is greater than ..... A) Load, effort. B) Effort, load. C) Work, power. D) None of the above. Show Answer Correct Answer: B) Effort, load. 20. A 5000N block is lifted 10 m. Calculate the work done. A) 500 J. B) 50 J. C) 5000 J. D) 50000 J. Show Answer Correct Answer: D) 50000 J. 21. In a swinging pendulum, at what point is the kinetic energy at its maximum and potential energy at its minimum? A) At the lowest point of the swing. B) At the midpoint of the swing. C) It remains constant throughout the swing. D) At the highest point of the swing. Show Answer Correct Answer: A) At the lowest point of the swing. 22. A force exerted over a distance to move an object is ..... A) Work. B) Momentum. C) Watt. D) Power. Show Answer Correct Answer: A) Work. 23. When a roller coaster cart falls towards the ground, what happens to its potential energy? A) Decreases. B) Stays the same. C) Nothing. D) Increases. Show Answer Correct Answer: A) Decreases. 24. A weightlifter presses a 400N weight 0.6m over his head in 2s. What is the power of the weightlifter? A) 200W. B) 120W. C) 1200W. D) 240W. Show Answer Correct Answer: B) 120W. 25. What is the equation to calculate work done on gases? A) $W=F\cdot d$. B) $P=\frac{F}{A}$. C) $W=P\cdot\Delta V$. D) $W=F\cdot d\cos\left(\theta\right)$. Show Answer Correct Answer: C) $W=P\cdot\Delta V$. 26. In the equation W = Fd, force and distance are ..... related A) Directly. B) Inversely. C) Not. D) None of the above. Show Answer Correct Answer: B) Inversely. 27. A 4357-kg roller coaster car starts from rest at the top of a 36.5 m high track. Determine the speed of the car at the top of a loop that is 10.8 m high. A) 2.7 m/s. B) 22.4 m/s. C) 2.24 m/s. D) 27.01 m/s. Show Answer Correct Answer: B) 22.4 m/s. 28. What are the two factors that affect kinetic energy? A) Time and energy. B) Power and mass. C) Mass and speed. D) Time and work. Show Answer Correct Answer: C) Mass and speed. 29. Energy that is caused by vibrations in the air. A form of kinetic energy. A) Electrical energy. B) Light energy. C) Nuclear energy. D) Sound energy. Show Answer Correct Answer: D) Sound energy. 30. Which of the following is non conservative force? A) Electric force. B) Elastic force. C) Gravitational force. D) Viscous force. Show Answer Correct Answer: D) Viscous force. 31. Which is more important in baseball? A) A faster swing. B) A heavier bat. C) Neither matters. D) They are of equal importance. Show Answer Correct Answer: A) A faster swing. 32. A 750 kg car has it velocity change from 25 m/s to 5 m/s. What is the work done on the car? A) -225, 000 J. B) -450, 000 J. C) +225, 000 J. D) -7500 J. Show Answer Correct Answer: A) -225, 000 J. 33. How can power be calculated if work is done over a period of time? A) P = t / W. B) P = W * t. C) P = W + t. D) P = W / t. Show Answer Correct Answer: D) P = W / t. 34. Two balls, a bowling ball and a baseball, are both traveling with a velocity of 10 m/s. Which ball has the greater kinetic energy? A) The bowling ball. B) The baseball. C) They have the same. D) Neither has kinetic energy. Show Answer Correct Answer: A) The bowling ball. 35. In a roller coaster ride, where is the potential energy at its maximum and kinetic energy at its minimum? A) In a loop. B) At the top of a hill. C) On a straight track. D) At the bottom of a hill. Show Answer Correct Answer: B) At the top of a hill. 36. The equation for POTENTIAL ENERGY is A) PE = work / time. B) PE = gravity x weight. C) PE = mass x gravity x height. D) PE = height / work. Show Answer Correct Answer: C) PE = mass x gravity x height. 37. In comparing of table tennis ball and tennis ball, which ball covered a longer distance once it was placed in a slope? A) Table tennis ball. B) Tennis ball. C) Same distance. D) None of the above. Show Answer Correct Answer: B) Tennis ball. 38. Which of the following would NOT result in work being done? A) A change in height. B) A change in speed or velocity. C) A force acting over a distance. D) A change in mass. Show Answer Correct Answer: D) A change in mass. 39. Falisha pulled a box with a force of 30N at an angle of 50$^{0}$ to the floor. Calculate the work done by Falisha if she pulled the box for a distance of 10m. A) 192.84 J. B) 22.98 J. C) 19.28 J. D) 229.8 J. Show Answer Correct Answer: A) 192.84 J. 40. Distinguish between gravitational potential energy (GPE) and elastic potential energy (EPE).I. GPE the energy stored due to height of object above the surface of Earth II. EPE is due to deformation of object.III. Both are stored energy available to do work A) I, II, III. B) I and II. C) I and III. D) III only. Show Answer Correct Answer: A) I, II, III. 41. A 60 kg boy lying on a surface of negligible friction throws horizontally a stone of mass 1 kg with a speed of 12 m/s away from him. As a result with what kinetic energy he moves back? A) 1.2 J. B) 36 J. C) 72 J. D) 2.4 J. Show Answer Correct Answer: A) 1.2 J. 42. Which of the following scenarios involves kinetic energy? A) A charged battery. B) A book resting on a table. C) A car moving at 60 km/h. D) A compressed spring. Show Answer Correct Answer: C) A car moving at 60 km/h. 43. A car moves moves with speed. What type of energy does it have because it is moving? A) Chemical energy. B) Light energy. C) Kinetic energy. D) Potential energy. Show Answer Correct Answer: C) Kinetic energy. 44. Energy that is stored is called ..... A) Kinetic. B) Potential. C) All the above. D) None of the above. Show Answer Correct Answer: B) Potential. 45. Elastic potential energy is stored in objects like springs when they are: A) In motion. B) Subjected to friction. C) Compressed or stretched. D) At rest. Show Answer Correct Answer: C) Compressed or stretched. 46. What type of product takes place when two vector quantities are multiplied which results to a scalar quantity like work? A) Dot product. B) Gradient product. C) Cross product. D) Curl product. Show Answer Correct Answer: A) Dot product. 47. Lifting a laundry basket A) Work. B) No Work. C) All the above. D) None of the above. Show Answer Correct Answer: A) Work. 48. A boy of mass 51kg climbed up a staircase of height 4m in 5s. Calculate the power delivered by the boy A) 255W. B) 2001.24W. C) 400.25W. D) 204W. Show Answer Correct Answer: C) 400.25W. 49. The kinetic energy of an object is at its maximum when: A) The object is at rest. B) The object is at the lowest point. C) The object is in motion. D) The object is in free fall. Show Answer Correct Answer: C) The object is in motion. 50. Work causes a change in A) Sweat. B) Force. C) Calories. D) Energy. Show Answer Correct Answer: D) Energy. 51. If a boulder is lifted by a forklift a distance of 10 meters with a force of 30 Newtons. How much work is being done? A) .333 Joules. B) 60 Joules. C) 300 Joules. D) 3 Joules. Show Answer Correct Answer: C) 300 Joules. 52. What would 14J be an example of? A) Time. B) Force. C) Distance. D) Work. Show Answer Correct Answer: D) Work. 53. Which of these is an example of work being done on an object? A) Pushing a cart through a distance in a supermarket. B) Holding a door shut on a windy day so it doesn't blow open. C) Holding a heavy pieve of wood at a construction site. D) Trying to push a car that doesn't move out of deep snow. Show Answer Correct Answer: A) Pushing a cart through a distance in a supermarket. 54. Using heat from the Earth's interior to generate electricity is called ..... A) Wind energy. B) Solar energy. C) Geothermal energy. D) Biomass energy. Show Answer Correct Answer: C) Geothermal energy. 55. A boy pushes on a parked car with a force of 195N. The car does not move. How much work does the boy do? A) 0J. B) 19.88J. C) 1912.95J. D) 195J. Show Answer Correct Answer: A) 0J. 56. What happens to the potential energy of an object as it falls? A) It remains constant. B) It becomes kinetic energy. C) It decreases. D) It increases. Show Answer Correct Answer: C) It decreases. 57. A football has a potential energy of 100 J. If the height increases by a factor of 10, what would be the new potential energy? A) 1 J. B) 10, 000 J. C) 10 J. D) 1000 J. Show Answer Correct Answer: D) 1000 J. 58. The work performed on an object depends on A) Force applied. B) Displacement. C) Angle at which force is inclined to displacement. D) All of these. Show Answer Correct Answer: D) All of these. 59. State true or false:According to Equivalence of Mass and Energy, it states that mass and energy are NOT interconvertible. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 60. Which of the following situations shows that work is done on an object or a person? A) A stone is whirled around a horizontal circle. B) A stack of books is carried across a room. C) A mother is dancing with her baby in her arms. D) A big box is dragged across the floor. Show Answer Correct Answer: D) A big box is dragged across the floor. ← 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