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 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 11 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Newton's "quantity of motion" is conservation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 2. 2)What formula is used to calculate force? A) Acceleration = Force x Mass. B) Force = Mass x Acceleration. C) Work = Force x Distance. D) Mass = Force + Acceleration. Show Answer Correct Answer: B) Force = Mass x Acceleration. 3. DISCRIMINATION:Gravitational force A) Towards the earth. B) Has an acceleration of 9.8 m/s$^{2}$. C) Equals mass. D) Downward force acting on a body. Show Answer Correct Answer: C) Equals mass. 4. A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them. This describes ..... A) Newton's Second Law. B) Law of Acceleration. C) Newton's Third Law. D) Newton's First Law. Show Answer Correct Answer: D) Newton's First Law. 5. The net force acting on an accelerating object is suddenly halved. This will cause the acceleration of the object to A) Double. B) Be halved. C) Remain unchanged. D) None of the above. Show Answer Correct Answer: B) Be halved. 6. The tendency of an object to resist changes in its rotational motion is called: A) Torque. B) Angular momentum. C) Centripetal force. D) Moment of inertia. Show Answer Correct Answer: D) Moment of inertia. 7. What happens to the acceleration when the force on an object is doubled? A) Acceleration also doubles. B) No change in the acceleration. C) Acceleration becomes half. D) Acceleration becomes zero. Show Answer Correct Answer: A) Acceleration also doubles. 8. Friction and air resistance are forces that: A) Pulls an object toward the center of Earth. B) Can make an object slow down or stop. C) Changes an object's position. D) Can't be described. Show Answer Correct Answer: B) Can make an object slow down or stop. 9. What is the name for a push or pull? A) Density. B) Movement. C) Force. D) Speed. Show Answer Correct Answer: C) Force. 10. A car accelerating around a mountain curve is an example of a(n) (a) force A) A. unbalanced. B) Balanced. C) All the above. D) None of the above. Show Answer Correct Answer: A) A. unbalanced. 11. Two trucks with different masses travel at the same speed down a hill toward a red light. What will happen when both trucks apply their brakes at the same time? A) The truck with the smaller mass will require less force to stop than the car with the larger mass. B) The truck with the small mass will take longer to stop than the car with the larger mass. C) All the above. D) None of the above. Show Answer Correct Answer: A) The truck with the smaller mass will require less force to stop than the car with the larger mass. 12. One of the forces acting upon an object is greater than another force A) Balanced force. B) Unbalanced force. C) All the above. D) None of the above. Show Answer Correct Answer: B) Unbalanced force. 13. Which of the following is NOT a result of Newton's Third Law? A) A book resting on a table. B) A rocket launching into space. C) A swimmer moving forward by pushing water backward. D) A car's tires pushing against the road to move forward. Show Answer Correct Answer: A) A book resting on a table. 14. Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more mass and requires more force to accelerate. A) Newton's 1st Law. B) Newton's 2nd Law. C) Acceleration. D) Newton's 3rd Law. Show Answer Correct Answer: B) Newton's 2nd Law. 15. F$_{N}$=100N, F$_{f}$=20N A) $\mu$=0.1. B) $\mu$=0.2. C) $\mu$=5.0. D) $\mu$=1.2. Show Answer Correct Answer: B) $\mu$=0.2. 16. A shell of mass 0.01kg is fired by a gun of mass 10kg. What is the recoil speed, if the muzzle speed of shell is 90m/s A) 90 m/s. B) 0.09 m/s. C) 0.9 m/s. D) 10 m/s. Show Answer Correct Answer: B) 0.09 m/s. 17. Two balls are simultaneously applied with a force of 20 N. One ball has a mass of 0.3 kg and the other has 0.4 kg. Which ball has greater acceleration? A) They will both accelerate at the same rate. B) None of them will accelerate greater than the other. C) The one with a mass of 0.3 kg has the greater acceleration. D) The one with a mass of 0.4 kg has the greater acceleration. Show Answer Correct Answer: C) The one with a mass of 0.3 kg has the greater acceleration. 18. Isaac Newton discovered the three laws of motion. Which example best illustrates Newton's third law of motion, which describes action and reaction forces? A) A rocket takes off from the ground. B) A book slides forward on a seat when the car stops. C) A heavier ball falls at the same speed as a lighter ball. D) A vehicle rounds a curve and changes its acceleration. Show Answer Correct Answer: A) A rocket takes off from the ground. 19. Isaac Newton explained all of this EXCEPT ..... A) Color. B) Gravity. C) Emotions. D) Light. Show Answer Correct Answer: C) Emotions. 20. A car traveling at a constant velocity on a straight road implies that: A) The car is accelerating. B) No force act on the car. C) The car is not moving. D) The net force on the car is zero. Show Answer Correct Answer: D) The net force on the car is zero. 21. Which of Newton's Laws is the Law of Action-Reaction? A) Newton's 1st Law. B) Newton's 2nd Law. C) Newton's 3rd Law. D) None of the above. Show Answer Correct Answer: C) Newton's 3rd Law. 22. The basic metric unit for distance is the ..... A) Gram. B) Meter. C) Liter. D) None of the above. Show Answer Correct Answer: B) Meter. 23. Newton's 3rd Law states that for ever action there is an equal and opposite ..... A) Reaction. B) Fraction. C) Satisfaction. D) Transaction. Show Answer Correct Answer: A) Reaction. 24. The mass of a person on Earth is 72 kg. What is the mass of the same person on the Moon where gravity is one-sixth that of Earth? A) 72 kg. B) 60 kg. C) 12 kg. D) 432 kg. Show Answer Correct Answer: A) 72 kg. 25. In the equation f=ma, "F" stands for ..... A) Mass. B) Velocity. C) Force. D) Acceleration. Show Answer Correct Answer: C) Force. 26. Mass and weight are ..... and ..... quantities respectively. A) Vector, scalar. B) Scalar, scalar. C) Scalar, vector. D) None of the above. Show Answer Correct Answer: C) Scalar, vector. 27. If you through a ball into the air it will come back down. What pulls the ball back to earth? A) Molecules. B) Friction. C) Gas. D) Gravity. Show Answer Correct Answer: D) Gravity. 28. Which of Newton's Laws is demonstrated by a ball rolling to a wall then stopping? A) Newton's Second Law. B) Newton's First Law. C) Law of Acceleration. D) Newton's Third Law. Show Answer Correct Answer: B) Newton's First Law. 29. An object moving along a surface suddenly increases speed. What can cause this to happen? A) It is move by balanced forces. B) It is moved by an unbalanced force. C) It is moved by two opposite forces. D) It is moved by a force without direction. Show Answer Correct Answer: B) It is moved by an unbalanced force. 30. If you slide a hockey puck on ice, eventually it will stop because of the friction of the ice. This is an example of which Law of Motion. A) Newton's First Law. B) Newton's Second Law. C) Newton's Third Law. D) None of the above. Show Answer Correct Answer: A) Newton's First Law. 31. A push or pull on an object is called ..... A) Force. B) Acceleration. C) Mass. D) Inertia. Show Answer Correct Answer: A) Force. 32. 45 meters per second squared is the ..... A) Mass. B) Weight. C) Acceleration. D) Force. Show Answer Correct Answer: C) Acceleration. 33. 4) Forces that are equal in size but in opposite directions are called ..... forces. A) Balanced. B) Strong. C) Unbalanced. D) Net force. Show Answer Correct Answer: A) Balanced. 34. Mass:inertia;weight: ..... A) Centripetal force. B) Gravitational force. C) Magnetic force. D) Electrical force. Show Answer Correct Answer: B) Gravitational force. 35. Newton:force;kilogram: ..... A) Weight. B) Mass. C) Speed. D) Acceleration. Show Answer Correct Answer: B) Mass. 36. Equal forces that do not cause a change in an objects motion A) Balanced force. B) Average speed. C) Unbalance force. D) Push or a pull. Show Answer Correct Answer: A) Balanced force. 37. True or false. If you change ONLY the direction of an object, you have then changed its velocity. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 38. What happens when you push on a wall? A) Nothing. B) The wall pushes back with less force. C) The wall pushes back with an equal force. D) The wall pushes back with more force. Show Answer Correct Answer: C) The wall pushes back with an equal force. 39. The greater the mass of an object, the greater the amount of ..... is needed to make it accelerate. A) Matter. B) Force. C) Acceleration. D) Velocity. Show Answer Correct Answer: B) Force. 40. "In every action there is an opposite reaction" . A) Law of Force. B) Law of Acceleration. C) Law of Inertia. D) Law of Interaction. Show Answer Correct Answer: D) Law of Interaction. 41. Which of the following explains why a passenger in a speeding bus is thrown forward when the bus suddenly stops? A) Gravitation. B) Interaction. C) Inertia. D) Acceleration. Show Answer Correct Answer: C) Inertia. 42. An object needs force to be applied to it in order to be in motion A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 43. According to Newton's first law, an object in motion will stay in motion unless: A) A balanced force acts on it. B) It stops. C) An unbalanced force acts on it. D) It remains at rest. Show Answer Correct Answer: C) An unbalanced force acts on it. 44. How long will an object remain at rest, according to Newton's First Law of Motion? A) As long as there are unbalanced forces acting on it. B) It can't rest. C) Until noon. D) Until an unbalanced force occurs. Show Answer Correct Answer: D) Until an unbalanced force occurs. 45. The force that causes a moving object to slow down when it touches another object. A) Friction. B) Math. C) Speed. D) Net Force. Show Answer Correct Answer: A) Friction. 46. Which law states the need to wear seatbelts? A) Newton's First Law. B) Newton's Second Law. C) Newton's Third Law. D) All of the above. Show Answer Correct Answer: A) Newton's First Law. 47. Newton's 2nd law of motion describes how an object A) Accelerates. B) Mass. C) Sun. D) None of the above. Show Answer Correct Answer: A) Accelerates. 48. Newton's ..... law of motion is also know as the law of inertia. A) First. B) Second. C) Third. D) None of the above. Show Answer Correct Answer: A) First. 49. Banking of roads is done:- A) To avoid skidding of vehicles on a circular road. B) To reduce wear and tear of tyres. C) To avoid accidents on a turning. D) All the above. Show Answer Correct Answer: D) All the above. 50. Assertion:A rocket moves forward by pushing the surrounding air backwards.Reason:It derives the necessary thrust to move forward according to Newtons third law of motion. A) If both assertion and reason are true and reason is the correct explanation of assertion. B) If both assertion and reason are true but reason is not the correct explanation of assertion. C) If assertion is true but reason is false. D) If both assertion and reason are false. Show Answer Correct Answer: A) If both assertion and reason are true and reason is the correct explanation of assertion. 51. Which of the following best describes Newton's First Law of Motion? A) An object will remain at rest or in uniform motion unless acted upon by an external force. B) The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. C) For every action, there is an equal and opposite reaction. D) The force of gravity acts between all masses. Show Answer Correct Answer: A) An object will remain at rest or in uniform motion unless acted upon by an external force. 52. Resistance or force of equal magnitude acting in the opposite direction to an action force. A) Reaction. B) Action. C) All the above. D) None of the above. Show Answer Correct Answer: A) Reaction. 53. Is equal to the distance the object travels divided by the time it takes to travel that distance. A) Speed. B) Velocity. C) All the above. D) None of the above. Show Answer Correct Answer: A) Speed. 54. A change in velocity is called ..... A) Force. B) Direction. C) Deceleration. D) Acceleration. Show Answer Correct Answer: D) Acceleration. 55. A frog pushes his legs down on a lily pad but yet the direction he travels is upwards. Which Law explains this? 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. 56. The rate at which an object changes position in a specific direction. A) Darth Vader. B) Velocity. C) Acceleration. D) Applied force. Show Answer Correct Answer: B) Velocity. 57. The ratio of force and acceleration measures: A) Velocity. B) Impulse. C) Momentum. D) None of the above. Show Answer Correct Answer: D) None of the above. 58. An object at rest will stay at rest and an object in motion is stay in motion unless an unbalanced force acts on it. A) Newton's First Law. B) Newton's Second Law. C) Newton's Third Law. D) All of these. Show Answer Correct Answer: B) Newton's Second Law. 59. A push and/or a pull. A) Normal force. B) Drag force. C) Force. D) Net force. Show Answer Correct Answer: C) Force. 60. Solve the following equation to find the force.F = 10kg x 5m/s A) 50 kilometers. B) 50 newtons. C) 20 newtons. D) 2 newtons. Show Answer Correct Answer: B) 50 newtons. ← 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