This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 3 Laws Of Motion – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The law of (a) is if an object is at rest it will stay at rest until an unbalanced force is acted upon it. A) A. inertia. B) Acceleration. C) Action and reaction. D) Force. Show Answer Correct Answer: A) A. inertia. 2. ..... is the force that pulls objects down towards the center of the Earth. A) Gravity. B) Inertia. C) Friction. D) None of the above. Show Answer Correct Answer: A) Gravity. 3. Common sense tells us it's harder to move a heavier object. Which of Newton's laws proves this? A) Newton's 1st Law. B) Newton's 2nd Law. C) Newton's 3rd Law. D) None of the above. Show Answer Correct Answer: B) Newton's 2nd Law. 4. Which of Newton's Three Law does the following example illustrate? The blood in your head rushes to your feet when riding on an elevator this is descending and abruptly stops. 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. 5. A book sitting on the table does not move. A) Law 1. B) Law 2. C) Law 3. D) None of the above. Show Answer Correct Answer: A) Law 1. 6. A 50kg cart will accelerate at 4 m/s$^{2}$ when pushed with a force of 200N. This relationship demonstrates which of Newton's Laws of Motion? A) Newton's 1st Law of Motion. B) Newton's 2nd Law of Motion. C) Newton's 3rd Law of Motion. D) Newton's 4th Law of Motion. Show Answer Correct Answer: B) Newton's 2nd Law of Motion. 7. A cyclist going round in a circular track at a constant speed has: A) Constant linear velocity. B) Constant linear velocity. C) Acceleration constant magnitude with its direction changing. D) None of these. Show Answer Correct Answer: C) Acceleration constant magnitude with its direction changing. 8. The velocity of a body of mass 20kg decreases from 20ms$^{-1}$ to 5ms$^{-1}$ in a distance of 100m. Force on the body is A) -27.5N. B) -47.5N. C) -37.5N. D) -67.5N. Show Answer Correct Answer: C) -37.5N. 9. The greater the force the greater the acceleration. A) Interaction. B) Inertia. C) Acceleration. D) None of the above. Show Answer Correct Answer: C) Acceleration. 10. If two people are pulling against each other with forces of 500 N and 600 N, there is a/an A) Balanced force. B) Unbalanced force. C) Weak force. D) Universal force. Show Answer Correct Answer: B) Unbalanced force. 11. Is magnetism a contact or noncontact force? A) Contact. B) Noncontact. C) All the above. D) None of the above. Show Answer Correct Answer: B) Noncontact. 12. A rocket pushes burning gases DOWN which causes the rocket to launch UP. Which law is this? A) Law 1. B) Law 2. C) Law 3. D) None of the above. Show Answer Correct Answer: C) Law 3. 13. A rocket with a lift-off mass 3.5 x 10$^{4}$ kg is blasted upwards with an initial acceleration of 10ms$^{-2}$. Then the initial thrust of the blast is A) 1.75 x 10$^{5}$ N. B) 3.5 x 10 $^{5}$N. C) 7 x 10$^{5}$N. D) 14 x 10$^{5}$N. Show Answer Correct Answer: C) 7 x 10$^{5}$N. 14. The greater the force, the greater the ..... A) Inertia. B) Force. C) Direction. D) Acceleration. Show Answer Correct Answer: D) Acceleration. 15. A fan is turned off in the living room. The fan slows down and comes to a rest as the forces become ..... A) Frictional. B) Balanced. C) Unbalanced. D) Restricted. Show Answer Correct Answer: B) Balanced. 16. The Law of Inertia is ..... 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. 17. Dynamics A) The study of motion. B) The study of forces. C) The study of angles. D) The study of magnetism. Show Answer Correct Answer: B) The study of forces. 18. Newton's First Law of Motion is the Principle of ..... A) Motion. B) Air. C) Interia. D) None of the above. Show Answer Correct Answer: C) Interia. 19. What does it mean when forces are balanced? A) The object is slowing down. B) The object is accelerating. C) The object is not moving. D) The object is being thrown. Show Answer Correct Answer: C) The object is not moving. 20. Objects with larger ..... also have greater inertia. A) Inertia. B) Energy. C) Mass. D) Weightlessness. Show Answer Correct Answer: C) Mass. 21. Which example best explains Newton's Third Law of Motion? A) When a glass slid across a table, it spilled water when it stopped suddenly. B) An engine used less work to move a lighter car than when it moved a heavier car. C) When you sit on a chair, your body exerts a downward force on the surface of the chair, while the chair exerts an equal and upward force on your body. D) None of the above. Show Answer Correct Answer: C) When you sit on a chair, your body exerts a downward force on the surface of the chair, while the chair exerts an equal and upward force on your body. 22. ..... force is the force due to gravity on a mass of 1 kg. A) One 100 gram. B) One gram. C) One kilogram. D) One quintal. Show Answer Correct Answer: C) One kilogram. 23. With friction the balls on a pool table stop rolling A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. The less momentum an object has, the easier it is to stop. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. Object X has twice the mass of Object Y. Both objects are accelerating at the same rate. Which statement best describes the motions of Object X and Object Y. A) Object X is travelling at twice the speed as Object Y. B) Object X is travelling at half the speed as Object Y. C) Object X requires twice the force to accelerate at the same rate as Object Y. D) Object X requires half the force to accelerate at the same rate as Object Y. Show Answer Correct Answer: C) Object X requires twice the force to accelerate at the same rate as Object Y. ← 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