1. Who introduced the concept of force and motion laws in classical mechanics?
2. What happens when the net force acting on an object is zero?
4. Which factor does NOT affect momentum?
5. If force is doubled and mass remains constant, acceleration will
6. A person standing in a moving bus suddenly falls sideways when the bus turns. This is due to
7. The unit Newton (N) is equal to
8. Which law is used in designing seat belts?
9. A fast-moving truck has more momentum than a slow bicycle because:
10. The change in momentum is called
12. Why are roads curved on turns?
13. When a balloon is released, it moves randomly due to
14. Which quantity remains conserved in an isolated system?
15. A force of 10 N acts on a 2 kg object. Acceleration is
16. Which condition increases stopping distance of a vehicle?
17. Why do athletes run before long jump?
18. Which law is used in swimming?
19. If action force increases, reaction force will:
20. A lighter object accelerates faster than a heavier one under same force because
