This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 3 Laws Of Motion – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 9 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. True or False. Our mass would change on a different planet. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 2. In which situation is the object experiencing balanced forces? A) A girl swings on a swing at the playground. B) A car brakes as it approaches a traffic light. C) A sled speeds up as it slides down a snow-covered hill. D) A sky diver reaches terminal velocity when he stops accelerating. Show Answer Correct Answer: D) A sky diver reaches terminal velocity when he stops accelerating. 3. A push or pull that can change the motion of an object. A) Friction. B) Acceleration. C) Force. D) Velocity. Show Answer Correct Answer: C) Force. 4. Newton's Third Law says that forces must always occur in ..... A) Pairs. B) Groups of 20 or more. C) Individual circumstances. D) Friction. Show Answer Correct Answer: A) Pairs. 5. An object at rest stays at rest or an object in motion stays in motion until unbalanced forces act upon it. A) Newton's First Law of Motion. B) Newton's Third Law of Motion. C) Newton's Second Law of Motion. D) None of the above. Show Answer Correct Answer: A) Newton's First Law of Motion. 6. A body, under the action of a force F = 6i-8j+10k, acquires an acceleration of 1m/s$^{2}$. The mass of this body must A) 10 kg. B) $2\sqrt{10}$. C) 10 $\sqrt{2}$. D) 20 kg. Show Answer Correct Answer: C) 10 $\sqrt{2}$. 7. Two forces are applied to a wooden box as shown below. Which statement BEST describes the effect these forces have on the box? A) The box does not move. B) The box moves to the right. C) The box moves to the left. D) The box moves straight up. Show Answer Correct Answer: C) The box moves to the left. 8. What is 3rd law of motion? A) Every action there is an equal and opposite reaction. B) An object at rest stays at rest. C) Unbalanced forces are important. D) None of the above. Show Answer Correct Answer: A) Every action there is an equal and opposite reaction. 9. Luis pushes a 50 pound box across the room. Christian pushes a 5 pound box across the same room. Who needs to use more force? A) Luis. B) Christian. C) Neither one. D) Both of them. Show Answer Correct Answer: A) Luis. 10. A balloon is accelerating upward. What is this an example of? A) 1st Law of Motion. B) 2nd Law of Motion. C) 3rd Law of Motion. D) None of the above. Show Answer Correct Answer: C) 3rd Law of Motion. 11. You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with ..... of force. A) 20N. B) 40N. C) 10N. D) 70N. Show Answer Correct Answer: A) 20N. 12. If Mrs. Dircks dropped her Pepsi bottle, what is the force that pulls the bottle to the ground? A) Motion. B) Friction. C) Air resistance. D) Gravity. Show Answer Correct Answer: D) Gravity. 13. What is an unbalanced force? A) Tendency of an object to resist a change in its motion. B) Something that causes motion. C) Something that causes no motion. D) When there is an equal amount of force on each side. Show Answer Correct Answer: B) Something that causes motion. 14. The action is gravity pulling you to the center of the earth. What is the reaction A) The chair pushing you up. B) A balanced force. C) You falling in a bottomless pit to the center of the earth. D) An unbalanced force. Show Answer Correct Answer: A) The chair pushing you up. 15. According to Newton's Second Law of Motion, an object in motion will ..... A) Stay in motion. B) Want to stop right away. C) Spontaneously combust. D) Go to the Moon!. Show Answer Correct Answer: A) Stay in motion. 16. A lift is moving from the ground floor to the third floor in a multistoried building. What will happen to the weight of a person in lift, when it starts to move up A) W = m(g+a). B) W = m(g-a). C) W = mg. D) W = 0. Show Answer Correct Answer: A) W = m(g+a). 17. Shooting A Cannon is an example of what law of motion? A) 2nd Law of Motion. B) 3rd Law of motion. C) 1st law of motion. D) None of the above. Show Answer Correct Answer: B) 3rd Law of motion. 18. The car is described as traveling east at 30 km/hr. From which reference point in the diagram is the motion of the car MOST likely being described? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 19. A man drops an apple in the lift. He finds that the apple remains stationary and does not fall . The lift is: ..... A) Going up with constant speed. B) Going down with constant speed. C) Going up with constant acceleration. D) Going down with constant acceleration equal to g. Show Answer Correct Answer: D) Going down with constant acceleration equal to g. 20. When Bobby, age 5, and his dad are skipping pebbles on the pond, the pebbles that Bobby's dad throws go farther and faster then his. A) Newton's first law. B) Newton's second law. C) Newton's third law. D) None of the above. Show Answer Correct Answer: B) Newton's second law. 21. Is the tendency of a body to resist a change in motion or rest. A) Inertia. B) Acceleration. C) Interaction. D) None of the above. Show Answer Correct Answer: A) Inertia. 22. Who developed the 3 laws of motion? A) Bill Nye. B) Charles Darwin. C) Mr. Fig Newton. D) Sir Isaac Newton. Show Answer Correct Answer: D) Sir Isaac Newton. 23. Inertia of a body depends on: A) Weight of the object. B) Acceleration due to gravity of the planet. C) Mass of the object. D) Both (a) & (b). Show Answer Correct Answer: C) Mass of the object. 24. If a 50-kilogram student is pushed in a rolling chair with a force of 20 N, what is the student's acceleration? A) 2.5 m/s$^{2}$. B) 4.0 m/s$^{2}$. C) 1, 000 m/s$^{2}$. D) 0.40 m/s$^{2}$. Show Answer Correct Answer: D) 0.40 m/s$^{2}$. 25. In the equation F=ma, the m stand for ..... A) The object's mass. B) The forces acting on an object. C) The acceleration of the object. D) The object's weight. Show Answer Correct Answer: A) The object's mass. ← 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 10Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books