Energy in Physics MCQ (Multiple Choice Questions) PDF Download

The energy converted to useful electrical energy is about

1. 30&percent;
2. 50&percent;
3. 70&percent;
4. 40&percent;

In driving the nail into the wood-block , the energy produced and released in hammer, nail and block is

1. sound energy as well as thermal energy
2. thermal energy
3. sound energy
4. kinetic energy

When a spring or rubber band is stretched or compressed, it possesses

1. elastic kinetic energy
2. elastic potential energy
3. elastic heat energy
4. elastic chemical energy

The moving objects has

1. heat energy
2. kinetic energy
3. chemical energy
4. magnetic energy

The energy equation based on the principle of conservation of energy is

1. useful energy output - wasted energy output
2. useful energy output + wasted energy output
3. useful energy output / wasted energy output
4. useful energy output × wasted energy output