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Class 11 Physics: Laws of Motion
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MCQs on motion basic laws, newtons first, second and third laws, momentum conservation, particle equilibrium, non-uniform circular motion, mechanics common forces and problems.

Class 11 Physics: Laws of Motion
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25 Questions

1. A stone tie with a string held at one end is being rotated at a constant angular velocity in the air. The tangential velocity will remain constant if _______
2. Which of the following laws of motion is related to inertia?
3. Two bodies in contact experience forces in ________
4. What is the plural of the word 'momentum'?
5. An example of variable mass system is _____
6. Two forces act on a body. One of them is 7î – 13ĵ. What is the value of the other force?
7. A ball is moving with a constant velocity. After some time, it collides with a wall. Which one of the following remains conserved except momentum?
8. A man and a kid accidentally hit each other. What is true about the forces experienced by them?
9. A block of mass 5 Kg, exhibits circular motion with the mass decreasing at the rate of 0.5 Kg/s. At what time the centripetal force will be zero on the block?
10. What is the force applied on a body with 5 kg of mass and an acceleration of 7 m/s2?
11. A batsman hits a ball with a force a 5 N. What force does the bat experience?
12. Inertia is _____
13. People sitting in a moving bus experience a jerk when the bus stops. This is due to _____
14. The radius of a body moving in a circle with constant angular velocity is given by r = 4t2, with respect to time. What is the magnitude of the tangential velocity at t = 2s, if the angular velocity is 7 rad/s?
15. Which of the following is a suitable word to describe the motion of a rotating ball tied to rope tied tightly to a fixed support?
16. When a body collides with a wall or the ground, what assumption do we make?
17. Two forces act on a ball. One of the forces is positive and acts towards right, the other one acts towards left and is ______
18. What causes the motion of a body which is initially in the state of rest?
19. A straight moving bus takes a sharp right turn. What will happen to the passengers sitting inside the bus?
20. If the force acting on a body is 10 N, and the acceleration is 4 m/s2, what can be the mass of the body?
21. Why do we not experience any leaning when a train takes a turn?
22. Three forces act on a body. Two of them are 7î – 13ĵN and 2î – 11ĵ. What is the value of the other force?
23. A ball tied at the end of a perfect string tied tightly (assume fixed) to a wooden bar at the other end is rotating with constant angular velocity. Its tangential velocity will _______
24. Two bodies are accelerating towards each other. After sometime they collide. Which one of the following statements is true about the system?
25. In the following figure, what will happen to the ball hanging from the roof of the car if the car suddenly moves towards left (direction shown by arrow)?