This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part I > Class 11 Physics (Part I) Chapter 3 Laws Of Motion – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 10 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An object with a mass of 100 kg is observed to accelerate at the rate of 5 m/s2. Calculate the force required to produce this acceleration. A) 500N. B) 20N. C) 500 Kg. D) 500 M/S. Show Answer Correct Answer: A) 500N. 2. If a body is in equilibirium under a set of non-collinear forces, then the minimum number of forces has to be A) Five. B) Two. C) Four. D) Three. Show Answer Correct Answer: D) Three. 3. Deceleration is ..... acceleration. A) Positive. B) Negative. C) Zero. D) None of these. Show Answer Correct Answer: B) Negative. 4. 1 N = ..... dyne A) 10$^{5}$. B) 10$^{6}$. C) 10$^{4}$. D) 10$^{3}$. Show Answer Correct Answer: A) 10$^{5}$. 5. The acceleration produced by a net force on an object is A) Directly proportional to the magnitude of the net force. B) In the same direction as the net force. C) Inversely proportional to the mass of the object. D) All of the above. Show Answer Correct Answer: D) All of the above. 6. Newton's first law of motion is the Law of Inertia. It states that 'An object at rest stays at rest, unless acted on by another force.' Which of the following would also be true? A) An object at rest will get bored and want to move. B) An object in motion will get tired and rest. C) An object in motion stays in motion, unless acted on by another force. D) None of the above. Show Answer Correct Answer: C) An object in motion stays in motion, unless acted on by another force. 7. The inability of a body to change its state is called A) Mass. B) Inertia. C) Both. D) None. Show Answer Correct Answer: B) Inertia. 8. Because of inertia, a moving object will keep ..... A) In one spot. B) At rest. C) Moving. D) Inertia. Show Answer Correct Answer: C) Moving. 9. When a car suddenly stops, the objects in the back seat are thrown forward. This is explained by- A) Newton's 2nd law of motion. B) Newton's 1st law of motion. C) Newton's 3rd law of motion. D) The Universal Law of Gravitation. Show Answer Correct Answer: B) Newton's 1st law of motion. 10. The working of rocket depends on A) Newton's first law of motion. B) Newton's second law of motion. C) Newton's third law of motion. D) None of the above. Show Answer Correct Answer: C) Newton's third law of motion. 11. According to Newton's Law of Inertia, an object that is moving will change its motion only if what kinds of forces act on it? A) Constant forces. B) Unbalanced forcesStrong forces. C) Unbalanced forces. D) Gravitational forces. Show Answer Correct Answer: C) Unbalanced forces. 12. Which of the following is an example of contact force? A) Gravitational force. B) Electrostatic force. C) Frictional force. D) Magnetic force. Show Answer Correct Answer: C) Frictional force. 13. Niko was pushed forward into his seatbelt when the car suddenly stops. What law of motion explains this? A) Law of Interaction. B) Law of Inertia. C) Law of Acceleration. D) Sliding friction. Show Answer Correct Answer: B) Law of Inertia. 14. When two equal forces act in opposite directions on an object, they are called ..... A) Centripetal force. B) Gravitational force. C) Frictional force. D) Balanced force. Show Answer Correct Answer: D) Balanced force. 15. You know the mass of an object and the acceleration it is going. Which of Newton's laws of motion will help you calculate the force the object has? A) Newton's 1st law of motion. B) Newton's 2nd law of motion. C) Newton's 3rd law of motion. D) None of the above. Show Answer Correct Answer: B) Newton's 2nd law of motion. 16. Without any force to change it, an object at rest stays at rest and an object in motion stays in motion A) Newton's first law of motion. B) Newton's second law of motion. C) Newton's third law of motion. D) None of the above. Show Answer Correct Answer: A) Newton's first law of motion. 17. What would happen if the action and reaction were to act on the same body? A) The resultant would be zero. B) The body would not move at all. C) Both (a) and (b) are correct. D) Neither (a) nor (b) is correct. Show Answer Correct Answer: C) Both (a) and (b) are correct. 18. When you paddle a canoe, the canoe goes forward. A) Newton's first law. B) Newton's second law. C) Newton's third law. D) None of the above. Show Answer Correct Answer: C) Newton's third law. 19. A baseball bat has an approximate mass of 0.15 kg. If a bat strikes the baseball with a force of 6 N, what is the acceleration of the ball? A) 6 m/s squared. B) 60 m/s squared. C) 40 m/s squared. D) 4 m/s squared. Show Answer Correct Answer: C) 40 m/s squared. 20. Newton's ..... law of motion is called the law of inertia. A) First. B) Second. C) Third. D) None of these. Show Answer Correct Answer: A) First. 21. Pat measure a small rubber ball and makes 3 other balls of the same diameter from lead, foam, and wood. Which has the greatest inertia? A) Rubber ball. B) Lead ball. C) Foam ball. D) Wood ball. Show Answer Correct Answer: B) Lead ball. 22. When you are standing up in a subway train, and the train suddenly stops, your body continues to go foward. A) Newton's 1st Law. B) Newton's 2nd Law. C) Newton's 3rd Law. D) None of the above. Show Answer Correct Answer: A) Newton's 1st Law. 23. A push or pull on an object by another object that is touching it A) Friction. B) Gravity. C) Weight. D) Contact force. Show Answer Correct Answer: D) Contact force. 24. A box is placed on an inclined plane and has to be pushed down. The angle of inclination is: A) Equal to angle of repose. B) Equal to angle of friction. C) More than angle of friction. D) Less than angle of repose. Show Answer Correct Answer: D) Less than angle of repose. 25. In Newton's first Law of Motion, an object at rest will ..... A) Remain at rest. B) Go to the Moon!. C) Defy gravity. D) Want to move. Show Answer Correct Answer: A) Remain at rest. 26. It takes ..... force to move heavier objects. A) Less. B) More. C) Equal. D) None of the above. Show Answer Correct Answer: B) More. 27. S.I unit of Force A) Pascal. B) Newton. C) Kgm/s. D) None. Show Answer Correct Answer: B) Newton. 28. Forces that two objects apply to each other A) Centripetal force. B) Circular motion. C) Force pair. D) Momentum. Show Answer Correct Answer: C) Force pair. 29. Newton's 3rd law says that all forces work in ..... A) Pairs. B) Trios. C) Groups. D) None of the above. Show Answer Correct Answer: A) Pairs. 30. Inertia is a property of what? A) Substance. B) Option. C) Matter. D) Mass. Show Answer Correct Answer: C) Matter. 31. A train traveling 60 mph slows down as it comes to a stop. This is an example of ..... A) Speed. B) Acceleration. C) Velocity. D) Distance. Show Answer Correct Answer: B) Acceleration. 32. Because of inertia, a resting object will remain at ..... A) A constant speed. B) School. C) Rest. D) Inertia. Show Answer Correct Answer: C) Rest. 33. When you jump up, you push the earth downwards. Why can't you tell that the earth has moved? A) The force of you jumping up doesn't actually push the earth down. B) The earth has much more mass so it doesn't move at all. C) The earth is firmly rooted. D) The earth has much more mass so you can't tell that it moved. Show Answer Correct Answer: D) The earth has much more mass so you can't tell that it moved. 34. CONCEPT RECALL:This law states that "Force is directly proportional to the mass and acceleration of an object." A) Law of Inertia. B) Law of Interaction. C) Law of Motion. D) Law of Acceleration. Show Answer Correct Answer: D) Law of Acceleration. 35. Why do you lean towards the left when a car turns right? A) Because of inertia. B) Because of velocity. C) Because of gravity. D) Because of reaction force. Show Answer Correct Answer: A) Because of inertia. 36. Which of Newton's Laws explains a rocket's movement during launch? A) Newton's Fourth Law of Motion. B) Newton's First Law of Motion. C) Newton's Third Law of Motion. D) Newton's Second Law of Motion. Show Answer Correct Answer: C) Newton's Third Law of Motion. 37. A force that opposes motion between objects that are touching is called ..... A) Velocity. B) Friction. C) Acceleration. D) Motion. Show Answer Correct Answer: B) Friction. 38. Newton's third law of motion states that for every action there is: A) An opposite, but equal reaction. B) An opposite and equal reaction. C) A reaction. D) None of the above. Show Answer Correct Answer: A) An opposite, but equal reaction. 39. A force that is applied to an object by a person or another object. A) Applied force. B) Velocity. C) Darth Vader. D) Acceleration. Show Answer Correct Answer: A) Applied force. 40. Which of the following is the best example of Newton's First Law of Motion? A) Jessica is sleeping. B) Jessica's body flies forward after she hits the brakes. C) Jessica drives a car. D) Jessica is at a road crossing. Show Answer Correct Answer: B) Jessica's body flies forward after she hits the brakes. 41. An electric fan keeps on rotating for some time even after it is switched off is an example of A) Newton's first law of motion. B) Newton's second law of motion. C) Newton's third law of motion. D) None of the above. Show Answer Correct Answer: A) Newton's first law of motion. 42. In the equation f=ma, what unit of measure is used for force? A) Meters per second. B) Kilogram. C) Feet per second. D) Newton. Show Answer Correct Answer: D) Newton. 43. Unbalanced forces can make an object accelerate by ..... A) Changing its speed. B) Changing it direction. C) Changing speed or direction. D) None of the above. Show Answer Correct Answer: C) Changing speed or direction. 44. The ..... of an object tends to make the object resist being set into motion. A) Motion. B) Force. C) Mass. D) Unbalanced forces. Show Answer Correct Answer: C) Mass. 45. Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction. A) Newton's 1st Law. B) Newton's 2nd Law. C) Newton's 3rd Law. D) None of them. Show Answer Correct Answer: C) Newton's 3rd Law. 46. 3) Newton's III law is applicable A) For a body is at rest. B) For a body in motion. C) Both a & b. D) Only for bodies with equal masses. Show Answer Correct Answer: C) Both a & b. 47. Every action has ..... A) No reaction. B) An equal and opposite reaction. C) An unequal and opposite reaction. D) A balanced and unbalanced force. Show Answer Correct Answer: B) An equal and opposite reaction. 48. Which statement is correct when an object experiences uniform circular motion; A) Velocity is constant. B) Direction of speed is uniform. C) Magnitude of velocity is not uniform. D) Its speed is constant. Show Answer Correct Answer: D) Its speed is constant. 49. The state of an object when it is not in motion. A) Moving. B) At rest. C) All the above. D) None of the above. Show Answer Correct Answer: B) At rest. 50. A bullet train travels at a constant speed of 900 km/h. How far can it travel in 1 hour and 15 minutes? A) 1125 km. B) 720 km. C) 12 km. D) 67, 500 km. Show Answer Correct Answer: A) 1125 km. 51. Force = ..... x ..... A) Force = speed x distance. B) Force = weight x time. C) Force = volume x density. D) Force = mass x acceleration. Show Answer Correct Answer: D) Force = mass x acceleration. 52. The size or quantity of something. A) Weight. B) Color. C) Magnitude. D) Shape. Show Answer Correct Answer: C) Magnitude. 53. What is an example of 2nd law of motion? A) A baseball will go farther than a basketball even if the same amount of force is applied to it. B) A basketball will move because I kicked it. C) All the above. D) None of the above. Show Answer Correct Answer: A) A baseball will go farther than a basketball even if the same amount of force is applied to it. 54. In Newton's Second Law equation, what does the a stand for? A) Animals. B) Ant. C) Atom. D) Acceleration. Show Answer Correct Answer: D) Acceleration. 55. What units is force measured in? A) Centimeters. B) Newtons. C) Kilograms. D) Pounds. Show Answer Correct Answer: B) Newtons. 56. For every action there is an equal but opposite reaction. A) Newton's First Law. B) Newton's Second Law. C) Newton's Third Law. D) All of these. Show Answer Correct Answer: C) Newton's Third Law. 57. Which moving object, in all likelihood, will have the greatest momentum? A) Volleyball hit by a fourth-grader. B) Volleyball hit by an Olympic volleyball player. C) Volleyball hit by a senior adult. D) Volleyball hit by a basketball coach. Show Answer Correct Answer: B) Volleyball hit by an Olympic volleyball player. 58. Motion rocket is space is the example of: A) I law of motion. B) II law of motion. C) III law of motion. D) None of these. Show Answer Correct Answer: C) III law of motion. 59. The less momentum an object has, the ..... it is to stop. A) Harder. B) Easier. C) All the above. D) None of the above. Show Answer Correct Answer: B) Easier. 60. What explains a quantity that has BOTH speed and direction? A) Speed. B) Velocity. C) Force. D) Inertia. Show Answer Correct Answer: B) Velocity. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 1Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 2Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 3Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 4Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 5Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 6Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 7Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books