Work in Physics Multiple Choice Questions with Answers – PDF Download

MCQ 1: For 2 objects of the different masses moving at same speed, the object of greater mass has:

1. no kinetic energy
2. greater potential energy
3. smaller kinetic energy
4. greater kinetic energy

MCQ 2: A girl accidently dropped a stone from her building, the mass os the stone is 12 g and the height is 60 m. If the air resistance can be neglected and g = 10 N kg^-1, what is the speed of the stone when it hits the ground?

1. 5.6 J
2. 7.2 J
3. 3.9 J
4. 5.8 J

MCQ 3: The SI unit of work is:

1. Joule
2. kg^-1
3. watt
4. Newton

MCQ 4: When a body of mass m moves at a speed v, its kinetic energy is defined as:

1. E_k = mv²
2. E_k = 1/2 mv
3. E_k = (1/2)mv²
4. E_k = m/v²

MCQ 5: The product of the force and the distance moved by the object in the direction of the force is known as:

1. effort
2. power
3. efficiency
4. work done