Energy, Work and Power MCQ (Multiple Choice Questions) PDF Download

SI unit for power is

1. Joules
2. Watts
3. Ohms
4. Newton

A car stopped screeching to avoid the crash with a van, change is involved in the process is

1. Kinetic energy is converted into sound energy
2. Kinetic Energy is converted into sound and thermal energy
3. Potential energy is converted into sound, heat and kinetic energy
4. Kinetic and potential energy is converted into thermal and sound energy

When a rubber band is compressed, type of energy possessed by the rubber is

1. Potential Energy
2. Thermal Energy
3. Kinetic Energy
4. Sound Energy

A machine is able to lift a mass of 200 kg vertically up to the height of 30 m above the ground in 50 seconds. The power of the machine is

1. 0.12 kW
2. 1.2 kW
3. 6.0 kW
4. 300 kW

Energy in relevance to time is related to

1. Efficiency
2. Work
3. Power
4. Force