Introduction
This set focuses on Newton's Third Law of Motion, action-reaction pairs, and the law of conservation of momentum. Questions cover collisions, recoil, explosions, and practical applications in sports and everyday life.
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📘 SCIENCE
PHYSICS | Motion-E
📝 Questions: 50
⏱️ Timer: 20 min
Q1. According to Newton's third law, action and reaction forces are:
Q2. Action and reaction forces act on:
Q3. In a collision, total momentum remains conserved if:
Q4. Momentum is the product of:
Q5. Momentum before collision equals momentum after collision due to:
Q6. If ball A exerts force FAB on ball B, then ball B exerts:
Q7. FAB = -FBA is the mathematical form of:
Q8. The law of conservation of momentum applies when:
Q9. When a balloon releases air, it moves forward due to:
Q10. In the balloon experiment, the escaping air acts as:
Q11. Recoil of a gun is an example of:
Q12. A gun recoils because:
Q13. In recoil, the gun moves backward because:
Q14. A heavier object shows smaller acceleration because:
Q15. Momentum is conserved in:
Q16. When a cork shoots out of a heated test tube, the test tube recoils due to:
Q17. In the test tube experiment, the cork moves forward and tube moves backward because:
Q18. A bullet of mass 20 g fired at 150 m/s gives gun a recoil because:
Q19. If total momentum before firing is zero, total momentum after firing must be:
Q20. The recoil velocity of the gun is smaller because:
Q21. If a gun of 4 kg fires a bullet with recoil velocity -1.5 m/s, the recoil velocity is:
Q22. The negative sign in recoil velocity indicates:
Q23. A girl jumps onto a stationary cart. After landing:
Q24. In the girl-cart problem, total momentum before and after must be:
Q25. As the girl jumps, her motion gives the system momentum in:
Q26. The combined mass of girl and cart results in:
Q27. If a girl of 40 kg jumps at 5 m/s onto a 10 kg cart, the final velocity is approximately:
Q28. Hockey players colliding illustrate:
Q29. When two players collide and stick together, they move with:
Q30. In the hockey example, players move in direction of:
Q31. Momentum depends on:
Q32. The SI unit of momentum is:
Q33. If external force acts on a system, momentum:
Q34. A balloon moving forward when air is released is due to:
Q35. The law of conservation of momentum arises from:
Q36. If two objects collide for time t, forces they exert are:
Q37. If momentum before event is zero, momentum after must be:
Q38. In firing, momentum of bullet is:
Q39. Recoil velocity is inversely proportional to:
Q40. When girl jumps on cart, cart moves because:
Q41. When two players collide, friction is negligible, so:
Q42. If ball A moves faster than ball B, collision causes:
Q43. In FAB = -FBA, signs indicate:
Q44. Momentum of system equals:
Q45. Greater mass leads to:
Q46. When cork shoots out, test tube moves:
Q47. Air escaping balloon provides:
Q48. The recoil direction of gun is:
Q49. If two masses stick after collision, the collision is:
Q50. In collisions, force during contact:
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