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 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A 3, 000-N force gives an object an acceleration of 15 m/s2 . The mass of the object is ..... A) 200 kg. B) 15 kg. C) 1, 500 kg. D) 45, 000 kg. Show Answer Correct Answer: A) 200 kg. 2. The resistance of an object to any change in its motion is called ..... A) Inertia. B) Friction. C) Weight. D) Gravity. Show Answer Correct Answer: A) Inertia. 3. What is Newton's 2nd Law of Motion? A) Gravity. B) Friction. C) An object at rest stays at rest & an object in motion stays in motion. D) The acceleration of an object is directly proportional to force & the acceleration of an object is inversely proportional to mass. Show Answer Correct Answer: D) The acceleration of an object is directly proportional to force & the acceleration of an object is inversely proportional to mass. 4. If outside forces such as friction are negligible, when twoobjects of the same mass collide and do not stick together, the objects multiply velocities. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. Which of the following correctly defines acceleration? A) The rate an object is going. B) The rate an object changes speed/direction. C) How fast an object is going. D) The direction an object is going. Show Answer Correct Answer: B) The rate an object changes speed/direction. 6. When the forces acting on an object do not cancel; the net force is not zero A) Kinetic energy. B) Balanced forces. C) Unbalanced forces. D) Potential energy. Show Answer Correct Answer: C) Unbalanced forces. 7. Which of these is an example of inertia? A) A person flying through the windshield during a car wreck because they weren't wearing their seat belt. B) Earth constantly traveling at the same speed in it's orbit. C) A person staying in the vehicle and hitting the air bag during a car wreck because they are wearing a seat belt. D) All of the above. Show Answer Correct Answer: D) All of the above. 8. A cat sitting on couch, a pencil on desk and a car at rest are all examples of ..... A) Balanced Force. B) Unbalanced Force. C) All the above. D) None of the above. Show Answer Correct Answer: A) Balanced Force. 9. Two forces act in opposite directions on a wood block. What will happen if the forces are unbalanced? A) The block will balance the forces. B) The position of the block will change. C) The mass of the block will change. D) The forces will reverse direction. Show Answer Correct Answer: B) The position of the block will change. 10. Why is it harder to push a van filled with bowling balls than it is to push a van with basketballs? A) The mass of the car is greater than the mass of the basketballs. B) The mass of the bowling balls is greater than the mass of the basketballs. C) The van with the basketballs is bigger than the van with the bowling balls. D) It should be equally as hard to push the two vans. Show Answer Correct Answer: B) The mass of the bowling balls is greater than the mass of the basketballs. 11. Identify the law:It is easier to push an empty cart in a supermarket than it is to push a loaded one. 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. 12. What is the name of the units that we measure force in? A) Einsteins. B) Newtons. C) Kg. D) Metres. Show Answer Correct Answer: B) Newtons. 13. An object in motion stays in motion and an object at rest stays at rest UNLESS A) Acted on by a balanced force. B) Acted on by an unbalanced force. C) All the above. D) None of the above. Show Answer Correct Answer: B) Acted on by an unbalanced force. 14. Which law of motion explains how objects move and interact with each other? A) First. B) Second. C) Third. D) None of the above. Show Answer Correct Answer: C) Third. 15. EQUATION OF LINEAR MOMENTUM P= A) Mv. B) Dispalcement /time. C) Ms$^{-1}$. D) Mgh. Show Answer Correct Answer: A) Mv. 16. If you kick a ball that is sitting on the ground, what kind of force have you used? A) Balanced. B) Unbalanced. C) Large. D) Small. Show Answer Correct Answer: B) Unbalanced. 17. What slows an object down and is the counter to keeping an object in motion? A) Mass. B) Friction. C) Inertia. D) Velocity. Show Answer Correct Answer: B) Friction. 18. When an object undergoes acceleration A) Its speed always increases. B) Its velocity always increases. C) It always falls towards the earth. D) A force always acts on it. Show Answer Correct Answer: D) A force always acts on it. 19. DISCRIMINATION:Action-at-a-distance forces or field forces A) Gravity. B) Magnetic force. C) Air resistance. D) Electrical force. Show Answer Correct Answer: C) Air resistance. 20. A person leans on a wall and the wall pushes back. This is an example of ..... 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. 21. Unbalanced force is ..... A) Change in motion. B) 2nd law of motion. C) Moving in a constant speed. D) None of the above. Show Answer Correct Answer: A) Change in motion. 22. In the equation f=ma, what does the "m" stand for A) Matter. B) Acceleration. C) Force. D) Mass. Show Answer Correct Answer: D) Mass. 23. An object at rest will remain at rest until an outside force makes it to move. A) Law of Inertia. B) Law of Acceleration. C) Law of Interaction. D) None of the above. Show Answer Correct Answer: A) Law of Inertia. 24. A rocket in outer space continues to move. 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: A) Newton's 1st Law of Motion. 25. The amount of force needed to give a 1 kg object an acceleration of 1 m/s$^{2}$ is one ..... A) Dyne. B) Newton. C) Joule. D) Erg. Show Answer Correct Answer: B) Newton. 26. If a car of mass 1000 kg is accelerating at $2\\frac{m}{s^2}$ A) 4000 N. B) 1000 N. C) 500 N. D) 2000 N. Show Answer Correct Answer: D) 2000 N. 27. Newton's 2nd Law states the Force = Mass & Acceleration. Which would require more force to stop? A) Sprinter. B) Walker. C) Non moving object. D) None of the above. Show Answer Correct Answer: A) Sprinter. 28. What is the solution for force? A) M=f x a. B) A=m x f. C) A=f x m. D) F=m x a. Show Answer Correct Answer: D) F=m x a. 29. The 17th century scientist who studied force and motion was A) Isaac Newton. B) Pythagoras. C) Lord Celsius. D) None of the above. Show Answer Correct Answer: A) Isaac Newton. 30. Combination of all the forces acting on an object A) Net force. B) Weight. C) Friction. D) Gravity. Show Answer Correct Answer: A) Net force. 31. What is Fluid Friction?? A) Occurs between fluid layers that are moving relative to each other.(In Air and Water). B) The resistance created by any two objects when sliding against each other. C) A force that keeps an object at rest. D) None of the above. Show Answer Correct Answer: A) Occurs between fluid layers that are moving relative to each other.(In Air and Water). 32. What is the name of Newton's 2nd Law of Motion? A) Law of Force and Acceleration. B) Law of Inertia. C) Law of Action / Reaction. D) None of the above. Show Answer Correct Answer: A) Law of Force and Acceleration. 33. For every action there is an equal reaction A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 34. What is the name of Newton's 1st Law of Motion? A) Law of Force and Acceleration. B) Law of Action / Reaction. C) Law of Inertia. D) None of the above. Show Answer Correct Answer: C) Law of Inertia. 35. If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first? A) The cannonball. B) The baseball. C) The balls land at the same time. D) The ball with the larger volume. Show Answer Correct Answer: C) The balls land at the same time. 36. Newton's third law states for every action, there is an ..... reaction. A) Opposite and equal. B) Opposite and unequal. C) Unbalanced. D) Severe. Show Answer Correct Answer: A) Opposite and equal. 37. When you push on a wall, the wall pushes back on you with ..... force. A) Equal. B) No. C) More. D) Not enough. Show Answer Correct Answer: A) Equal. 38. When a bus starts moving all of a sudden, the head of the passenger sitting in the bus strikes the back of his seat. Is an example of what law?? A) First law of motion. B) 3rd law of motion. C) 2nd law of motion. D) None of the above. Show Answer Correct Answer: A) First law of motion. 39. Newton's Second Law of Motion can be written as F = ma. What does the letter "m" stand for? A) Motion. B) Movement. C) Magnitude. D) Mass. Show Answer Correct Answer: D) Mass. 40. What is the force of gravity on a 5 kg object? A) 5 kg. B) 49 N. C) 0.51 N. D) 5 N. Show Answer Correct Answer: B) 49 N. 41. An object in motion stops when ..... A) It falls of an edge. B) It is acted upon by an outside force. C) It is eaten. D) It never stops. Show Answer Correct Answer: B) It is acted upon by an outside force. 42. The rate at which the speed or the direction of motion of an object changes over time A) Inertia. B) Average speed. C) Force. D) Acceleration. E) Gravity. Show Answer Correct Answer: D) Acceleration. 43. Whenever an object exerts a force on another object, the second object exerts a force of the same magnitude, but in the ..... direction to that of the first object. A) Same. B) Vertical. C) Right angle. D) Opposite. Show Answer Correct Answer: D) Opposite. 44. A child pushes down on a box lid with a force of 25 N. At the same time, her friend pushes down on the lid with a force of 30 N. The spring on the box lid pushes upward with a force of 60 N. Can the children close the box? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 45. A force that results from two objects rubbing past each other. A) Inertia. B) Friction. C) Gravity. D) Force. Show Answer Correct Answer: B) Friction. 46. What is an example of an noncontact force? A) Friction. B) Air resistance. C) Unbalanced. D) Gravity. Show Answer Correct Answer: D) Gravity. 47. If you double the mass of an object but apply the same force apply on it, the acceleration will ..... A) Cut in half. B) The same. C) Double. D) Zero. Show Answer Correct Answer: A) Cut in half. 48. Sliding friction A) The resistance created by any two objects when sliding against each other. B) A force that keeps an object at rest. C) Occurs between fluid layers that are moving relative to each other. D) None of the above. Show Answer Correct Answer: A) The resistance created by any two objects when sliding against each other. 49. A space shuttle only has enough fuel to get it out of Earth's atmosphere. Once the space shuttle is in space (where there is no friction/ air resistance) it will continue moving even without any fuel because of ..... A) Newton's First Law. B) Newton's Second Law. C) Newton's Third Law. D) The Law of Space and Redundancy Law. Show Answer Correct Answer: A) Newton's First Law. 50. What is the formula for calculating the force applied to an object, according to Newton's Second Law of Motion? A) $F = ma$. B) $F = \frac{m}{a}$. C) $F = m + a$. D) None of the above. Show Answer Correct Answer: A) $F = ma$. 51. Which model would represent Newton's law of action-reaction? A) Toy rocket being launched. B) Toy car rolling down a ramp. C) Toy boat floating in the water. D) Toy tractor being pushed over a hill. Show Answer Correct Answer: A) Toy rocket being launched. 52. 13) Force of gravity is directly proportional to A) Distance. B) Weight. C) Time. D) Mass. Show Answer Correct Answer: D) Mass. 53. Impulse is equal to A) Rate of change of momentum. B) Rate of force and time. C) Change of momentum. D) None of the above. Show Answer Correct Answer: C) Change of momentum. 54. The force of gravity acting on an object is an example of which type of force? A) Frictional force. B) Gravitation force. C) Normal force. D) Applied force. Show Answer Correct Answer: B) Gravitation force. 55. A bug weighs 10 mg and is flying at 40 mph. It hits a 2, 000 kg car which is also traveling at 40 mph. The bug splatters. Which force was stronger according to Newton's 3rd law? (hint:Force = mass x acceleration) A) The bug's force. B) The car window's force. C) The forces were equal. D) None of the above. Show Answer Correct Answer: B) The car window's force. 56. What is the standard unit of acceleration? A) M. B) M/s$^{2}$. C) M/s. D) S. Show Answer Correct Answer: B) M/s$^{2}$. 57. Newton's Second Law of Motion states ..... A) An object at rest will remain at rest, and an object in motion will remain in motion unless it is acted on by an unbalanced force. B) For every action, there is an equal and opposite reaction. C) Acceleration occurs when a force acts on a mass. The bigger the mass of the object the bigger the amount of force needed to accelerate the object. D) None of the above. Show Answer Correct Answer: C) Acceleration occurs when a force acts on a mass. The bigger the mass of the object the bigger the amount of force needed to accelerate the object. 58. Who is the scientist who came up with the Laws of Motion? A) Sir John Newt. B) Sir Issac Newton. C) The Greeks. D) John Dalton. Show Answer Correct Answer: B) Sir Issac Newton. 59. Strong nuclear force A) It holds the protons and neutrons in the nucleus of the atom and overcomes the repulsion between the protons. B) The force in an atomic nucleus responsible for radioactivity, and prompts the nuclear fusion reaction that fuels the sun. C) It determines the ways in which electrically charged particles interact with each other and with magnetic fields. D) The force of attraction acting between all matter. Show Answer Correct Answer: A) It holds the protons and neutrons in the nucleus of the atom and overcomes the repulsion between the protons. 60. Because of inertia, a resting object ..... A) Will remain at rest. B) Will move at a constant speed. C) Will eventually move. D) Is unbalanced. Show Answer Correct Answer: A) Will remain at rest. ← 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 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 8Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books