This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 3 Laws Of Motion – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Forces always act in equal and opposite pairs. A) Newton's 1st Law. B) Newton's 2nd Law. C) Newton's 3rd Law. D) Newton's 4th Law. Show Answer Correct Answer: C) Newton's 3rd Law. 2. The action and reaction forces referred to in Newton's third law of motion ..... A) Act on different bodies. B) Act on the same bodies. C) Need not to be equal in magnitude. D) Must have the same line of action. Show Answer Correct Answer: A) Act on different bodies. 3. ..... law of Newton gives the definition of force A) I. B) II. C) III. D) Gravitatinal. Show Answer Correct Answer: A) I. 4. Newtons 2nd Law of Motion A) Every action has an equal but opposite reaction. B) That the acceleration of an object is dependent upon two variables-Net Force and mass. C) Every object will remain at rest or constant motion until a outside forces acts upon it. D) None of the above. Show Answer Correct Answer: B) That the acceleration of an object is dependent upon two variables-Net Force and mass. 5. A wagon is pulled to the right using a force of 20 N and to the left using a force of 30 N. What is the net force on the wagon? A) 10 newtons to the left. B) 50 newtons to the left. C) 10 newtons to the right. D) 50 newtons to the right. Show Answer Correct Answer: A) 10 newtons to the left. 6. A garbage can full of trash needs a stronger force to move it to the curb than an empty garbage can. Which of Newton's Laws does this represent? A) 1. B) 2. C) 3. D) None of the above. Show Answer Correct Answer: B) 2. 7. The Law of Inertia 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. 8. Friction at rest is ..... A) Sliding. B) Rolling. C) Fluid. D) Static. Show Answer Correct Answer: D) Static. 9. What force slows down and eventually stops a ball that is rolling on the ground? A) Friction. B) Gravity. C) Inertia. D) None of the above. Show Answer Correct Answer: A) Friction. 10. If two objects have the same mass, then the faster moving object has ..... momentum. A) More. B) Less. C) The same. D) None of the above. Show Answer Correct Answer: A) More. 11. Which of Newton's Three Laws does the following statement satisfy? The relationship between an object's mass (m), its acceleration (a), and the applied force F is F=ma. Acceleration and force are vectors. This law requires that the direction of the acceleration vector is in the same direction as the force vector. A) Newton's First Law. B) Newton's Second Law. C) Newton's Third Law. D) All of the above. Show Answer Correct Answer: B) Newton's Second Law. 12. Terminal velocity A) The total of all the forces acting on an object. B) For every action, there is an equal and opposite reaction. C) A force that resists motion in two objects that are moving against each other. D) The constant velocity after which an object stops accelerating. Show Answer Correct Answer: D) The constant velocity after which an object stops accelerating. 13. Newton's first law of motion states that an object at rest will continue to stay at rest unless there is a/n ..... acted on the object. A) Balanced force. B) Unbalanced force. C) Acceleration. D) Mass. Show Answer Correct Answer: B) Unbalanced force. 14. Joe pushes a box with a force of 16 Nto the left. Ann pushes the same boxfrom the opposite side with a force of10 N to the right. What will be theresult? A) The box will move up because of acombined force of 26 N. B) The box will not move because 6N is not enough to move it. C) The box will move to the leftbecause of a net force of 6 N. D) The box will move to the right. Show Answer Correct Answer: C) The box will move to the leftbecause of a net force of 6 N. 15. A 120 kg lineman moving at-2 m/s tackles an 80 kg fullback moving at +8 m/s. If the fullback's velocity after they collide is +2 m/s, what is the lineman's velocity? A) 2 m/s. B) 8.7 m/s. C) 4.7 m/s. D) 6 m/s. Show Answer Correct Answer: A) 2 m/s. 16. 14) If I double the mass of one object, but don't change anything else ..... what happens to the gravitational force between two objects? A) Doubles. B) Quadruples. C) 4x Smaller. D) Cut in Half. Show Answer Correct Answer: A) Doubles. 17. Which of the following scenarios best illustrates Newton's First Law of Motion? A) A car maintaining a constant speed on a straight road. B) A ball rolling down a hill. C) A rocket accelerating into space. D) A pendulum swinging back and forth. Show Answer Correct Answer: A) A car maintaining a constant speed on a straight road. 18. A student pushes against a tree with a force of 10N (newtons). What is the amount of force exerted by the tree? A) 0N. B) 5N. C) 10N. D) 20N. Show Answer Correct Answer: C) 10N. 19. What is another term for change in velocity? A) Acceleration. B) Inertia. C) Centripetal force. D) Maximum speed. Show Answer Correct Answer: A) Acceleration. 20. Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate? A) 20 m/s$^{2}$. B) 2 m/s$^{2}$. C) 0.5 m/s$^{2}$. D) 120 N. Show Answer Correct Answer: B) 2 m/s$^{2}$. 21. Which experiment listed below will best determine how friction affects the speed of a rolling object? A) Roll 3 objects of various sizes across the floor. B) Roll 3 objects of equal size from various heights across the floor. C) Roll 3 objects of equal size across 3 different types of surfaces. D) Roll 3 objects of equal size from equal heights across the floor. Show Answer Correct Answer: C) Roll 3 objects of equal size across 3 different types of surfaces. 22. TRUE or FALSEA force is a push or a pull that can change the motion of an object. A) True. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. The relationship among force, mass, and acceleration is stated in ..... A) The law of conservation of momentum. B) Newton's second law of motion. C) Newton's first law of motion. D) Newton's third law of motion. Show Answer Correct Answer: B) Newton's second law of motion. 24. A Rocket taking flight is what Law? A) Newtons 1st law of motion. B) Newtons 3rd law of motion. C) Newtons law of Inertia. D) Newtons 2nd law of motion. Show Answer Correct Answer: B) Newtons 3rd law of motion. 25. Combination of all the forces acting on an object is called ..... ? A) Net force. B) Maximum force. C) Unbalanced force. D) Force. Show Answer Correct Answer: A) Net force. 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