Physics Study Guide Multiple Choice Questions (MCQ) PDF Download

MCQ 1: A body of mass 10 kg is moving with the velocity of 15 ms⁻¹. The force required to stop it in 3 seconds should be

1. 50 Ns
2. 100 Ns
3. 75 Ns
4. 170 Ns

MCQ 2: A bullet of mass 30 g is fired from a gun with a muzzle velocity 90ms⁻¹. If its mass is 4 kg then the recoil of the gun will be

1. − 0.34 ms⁻¹
2. 0.54 ms⁻¹
3. − 0.54 ms⁻¹
4. 0.34 ms⁻¹

MCQ 3: SI unit of momentum is

1. newton second (Ns)
2. θ
3. μ
4. λ

MCQ 4: A group of interacting bodies on which no external force is acting is known as

1. sexasigmal system
2. isolated system
3. SGS system
4. none of above

MCQ 5: The momentum of an isolated system of two or more than two interacting bodies remains

1. variable
2. zero
3. negative
4. constant