Introduction
This set contains numerical problems and application-based questions on Newton's Second Law, including calculations of force, acceleration, mass, and velocity conversions. Questions also cover velocity-time graphs and braking force calculations.
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📘 SCIENCE
PHYSICS | Motion-D
📝 Questions: 50
⏱️ Timer: 20 min
Q1. Accelerating a 2 kg mass at 5 m/s² requires a force of:
Q2. A motorcar moves at 108 km/h. In m/s, this is:
Q3. If a car stops from 30 m/s in 4 seconds, the acceleration is:
Q4. The force applied by the brakes on a 1000 kg car stopping from 30 m/s in 4 s is:
Q5. The negative sign in brake force indicates:
Q6. A 5 N force gives a mass an acceleration of 10 m/s². The mass is:
Q7. A 5 N force gives a mass an acceleration of 20 m/s². The mass is:
Q8. When both masses (0.50 kg and 0.25 kg) are tied together, total mass is:
Q9. The acceleration produced by a 5 N force on a 0.75 kg mass is:
Q10. A ball moving with initial velocity 20 cm/s comes to rest in 10 s. The initial velocity in m/s is:
Q11. A ball comes to rest from 20 cm/s in 10 seconds. The time taken is:
Q12. Acceleration of a ball slowing from 20 cm/s to rest in 10 s is:
Q13. A ball of 20 g mass is decelerating. The mass in kg is:
Q14. Force exerted by a table on a 20 g ball decelerating at 0.02 m/s² is:
Q15. The negative sign of force on the ball means:
Q16. Newton's third law states:
Q17. Action and reaction forces act on:
Q18. In football, when two players collide:
Q19. When spring balances A and B are pulled, readings are:
Q20. In walking, we push the ground:
Q21. The ground pushes us:
Q22. A gun recoils because:
Q23. The recoil of the gun is less because:
Q24. When a sailor jumps forward from a boat, the boat moves:
Q25. Momentum of ball A before collision is:
Q26. Momentum after collision of ball B is:
Q27. Rate of change of momentum of A is:
Q28. During collision, ball A exerts a force on ball B equal to:
Q29. These forces are called:
Q30. Action and reaction forces always occur:
Q31. Reaction force arises because of:
Q32. In the spring balance setup, force applied by A on B is:
Q33. When the ball slows down uniformly, its velocity-time graph is:
Q34. In braking, force is negative because:
Q35. In combining masses, total mass is:
Q36. Acceleration of combined mass of 0.75 kg with 5 N force is:
Q37. Momentum before collision of A is:
Q38. During collision, forces between A and B are:
Q39. The quantity m(v - u)/t represents:
Q40. Decrease in velocity to zero means:
Q41. When mass is doubled and force same, acceleration:
Q42. The boat moves backward when sailor jumps forward due to:
Q43. A gun moves backward because:
Q44. When brakes act, force is:
Q45. In velocity-time graph, area under graph gives:
Q46. The force causing deceleration of a ball rolling on a table is:
Q47. 20 g in kg is:
Q48. Force of -0.0004 N means:
Q49. Newton's third law pairs are equal in:
Q50. In a collision, the forces between objects last for:
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