This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 3 Laws Of Motion – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 24 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If a body is in equilibirium under a set of non-collinear forces, then the minimum number of forces has to be A) Three. B) Two. C) Four. D) Five. Show Answer Correct Answer: A) Three. 2. Deceleration is ..... acceleration. A) Positive. B) Negative. C) Zero. D) None of these. Show Answer Correct Answer: B) Negative. 3. 1 N = ..... dyne A) 10$^{3}$. B) 10$^{4}$. C) 10$^{5}$. D) 10$^{6}$. Show Answer Correct Answer: C) 10$^{5}$. 4. 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. 5. 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. 6. 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. 7. Because of inertia, a moving object will keep ..... A) At rest. B) Moving. C) In one spot. D) Inertia. Show Answer Correct Answer: B) Moving. 8. Motion is any change in ..... A) Accelration. B) Distance. C) Position. D) Velocity. Show Answer Correct Answer: C) Position. 9. When a car suddenly stops, the objects in the back seat are thrown forward. This is explained by- A) Newton's 1st law of motion. B) Newton's 2nd law of motion. C) Newton's 3rd law of motion. D) The Universal Law of Gravitation. Show Answer Correct Answer: A) 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. Inertia refers to ..... A) The force that keeps stationary objects at rest. B) The force which keeps moving objects in motion with a constant. C) The tendency of moving objects to remain in motion. D) All of the above. Show Answer Correct Answer: C) The tendency of moving objects to remain in motion. 12. 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 forces. C) Unbalanced forcesStrong forces. D) Gravitational forces. Show Answer Correct Answer: B) Unbalanced forces. 13. Which of the following is an example of contact force? A) Electrostatic force. B) Gravitational force. C) Frictional force. D) Magnetic force. Show Answer Correct Answer: C) Frictional force. 14. Niko was pushed forward into his seatbelt when the car suddenly stops. What law of motion explains this? A) Sliding friction. B) Law of Interaction. C) Law of Acceleration. D) Law of Inertia. Show Answer Correct Answer: D) Law of Inertia. 15. When two equal forces act in opposite directions on an object, they are called ..... A) Frictional force. B) Balanced force. C) Centripetal force. D) Gravitational force. Show Answer Correct Answer: B) Balanced force. 16. 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. 17. 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. 18. 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. 19. 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. 20. 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) 4 m/s squared. B) 6 m/s squared. C) 40 m/s squared. D) 60 m/s squared. Show Answer Correct Answer: C) 40 m/s squared. 21. 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. 22. 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. 23. 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. 24. A push or pull on an object by another object that is touching it A) Friction. B) Contact force. C) Gravity. D) Weight. Show Answer Correct Answer: B) Contact force. 25. A box is placed on an inclined plane and has to be pushed down. The angle of inclination is: A) Equal to angle of friction. B) More than angle of friction. C) Equal to angle of repose. D) Less than angle of repose. Show Answer Correct Answer: D) Less than angle of repose. ← 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