Revision – Laws of Motion & Friction

Grade 11 Physics — Revision – Laws of Motion & Friction: 25 practice questions with instant scoring and explanations.

1. Newton's first law is also called:
2. Newton's second law: F = :
3. Newton's third law is:
4. Linear momentum is defined as:
5. Conservation of momentum holds when:
6. A body in equilibrium has:
7. Coefficient of static friction μ_s vs kinetic friction μ_k:
8. Kinetic friction force is:
9. Friction acts:
10. On a horizontal surface with friction, a block moves with constant velocity, so net force is:
11. The angle of friction θ satisfies:
12. Angle of repose for a block on incline, with μ_s:
13. Tension in light string connecting two masses is:
14. On an incline of angle θ, component of weight along incline is:
15. Normal reaction on incline of angle θ is:
16. Banking of roads is done to:
17. On a banked curve (frictionless), v² = :
18. A block on rough horizontal surface pulled by 20 N, μ_k = 0.2, m = 5 kg. If a = ? (g=10):
19. Free body diagram shows:
20. Impulse = :
21. SI unit of impulse:
22. Rolling friction is generally:
23. Friction can be reduced by:
24. In a frictionless system, pulling a block needs:
25. A bullet of mass 0.01 kg moving at 200 m/s embeds in block of 0.99 kg. Common velocity: