This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 3 Laws Of Motion – Quiz 41 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 41 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The first law of motion states that objects at rest will stay at rest unless acted upon by an unbalanced: A) Motion. B) Force. C) Inertia. D) Acceleration. Show Answer Correct Answer: B) Force. 2. Two people of different mass' are holding exercise balls and run towards each other with the same force. According to Newton's 3rd Law, which person will have more force in the opposite direction? A) The larger person. B) The smaller person. C) Both will have the same reaction. D) Neither will have a reaction. Show Answer Correct Answer: B) The smaller person. 3. Thing in motion stay in what? A) Water. B) Motion. C) School. D) Place. Show Answer Correct Answer: B) Motion. 4. What is Static 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.(air and water). D) None of the above. Show Answer Correct Answer: B) A force that keeps an object at rest. 5. 6) The unit of 'g' is m s-2. It can be also expressed as A) Cm s$^{-1}$. B) N kg$^{-1}$. C) N m2 kg$^{-1}$. D) Cm2 s$^{-2}$. Show Answer Correct Answer: B) N kg$^{-1}$. 6. An object at rest stay at rest and an object in motion stays in motion until acted upon by an unbalanced force. A) Newton's 3rd Law. B) Force. C) Newton's 2nd Law. D) Newton's 1st Law. Show Answer Correct Answer: D) Newton's 1st Law. 7. A person sitting in an open car moving at constant velocity throws a ball vertically into air, the balls falls A) Exactly in the hand of thrower. B) Outside the car. C) In the car ahead of the person. D) In the car behind the person. Show Answer Correct Answer: A) Exactly in the hand of thrower. 8. Gravitation accounts for the planets not falling in space A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. A box of mass 4kg is placed on a wooden plank of length 1.5m which is lying on the ground. Thye plank is lifted from one end along its length so that it becomes inclined. It is noted that when the vertical height of the top end of the plank from the ground becomes 0.5m, the box begins to slide. Find the coefficient of friction between box and the plank A) 0.25. B) 0.35. C) 0.45. D) 0.50. Show Answer Correct Answer: B) 0.35. 10. The formula for average speed is ..... hint:Miles/hour A) Speed = Distance / time. B) Speed = Distance X time. C) Speed =???. D) Something fast. Show Answer Correct Answer: A) Speed = Distance / time. 11. An object of mass 2 kg is sliding with a constant velocity of 4 m/s on a frictionless horizontal table. The force required to keep the object moving with the same velocity is A) 32 N. B) 0 N. C) 2 N. D) 8 N. Show Answer Correct Answer: B) 0 N. 12. All forces come in pairs A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 13. A person steps out of the boat and onto the dock. As the person moves forward onto the dock, the boat moves backward. Which statement best describes the backward motion of the boat as the person steps forward? A) For every action, there is an equal but opposite reaction. B) Every mass exerts a force on every other mass. C) An object at rest will tend to stay at rest. D) Friction opposes the motion of an object. Show Answer Correct Answer: A) For every action, there is an equal but opposite reaction. 14. What kind(s) of objects have inertia? A) All objects with mass. B) Only objects at rest. C) Only objects in motion. D) Only objects whose motion is being changed. Show Answer Correct Answer: A) All objects with mass. 15. If a car suddenly stops, the passengers lurch forward. Which of Newton's Laws explains this? A) Newton's First Law. B) Newton's Second Law. C) Newton's Third Law. D) Newton's Law of Universal Gravitation. Show Answer Correct Answer: A) Newton's First Law. 16. What is the unit for momentum? A) M/sec. B) Kg/sec. C) Kg/m. D) Kg x m/sec. Show Answer Correct Answer: D) Kg x m/sec. 17. Momentum, like velocity, is describes by both what? A) Direction and strength. B) Direction, and net force. C) All the above. D) None of the above. Show Answer Correct Answer: A) Direction and strength. 18. Newton is known as the father of science A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 19. A picture is hanging on a wall and does not move. A) Newton's 1st Law. B) Newton's 2nd Law. C) Newton's 3rd Law. D) None of them. Show Answer Correct Answer: A) Newton's 1st Law. 20. When a body is moving on a surface, the force of friction is called: A) Static friction. B) Dynamic friction. C) Limiting friction. D) Rolling friction. Show Answer Correct Answer: B) Dynamic friction. 21. True or False:The laws of motion are important to the world. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 22. Identify Newton's 2nd Law of Motion A) A push or a pull. B) The acceleration of an object depends on the mass and force applied. C) An object in motion only. D) A change in motion, speed up or slow down. Show Answer Correct Answer: B) The acceleration of an object depends on the mass and force applied. 23. How much force is needed to accelerate a 75 kg skier at an acceleration of 2 m/s$^{2}$ A) 150 N. B) 37.5 N. C) 735 N. D) Not enough information to determine. Show Answer Correct Answer: A) 150 N. 24. Mrs. Murphy parks her car in the Kingston parking lot. Her car is ..... A) Increasing acceleration. B) In motion. C) At rest. D) Missing. Show Answer Correct Answer: C) At rest. 25. For friction on an incline, what direction does F$_{p}$ point? A) Always perpendicular to the surface. B) Always down the incline and parallel to the surface. C) Always up the incline and parallel to the surface. D) It depends on the direction of motion. Show Answer Correct Answer: B) Always down the incline and parallel to the surface. ← PreviousNext →Related 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 8Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 9Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books