Work and Power

Front

What is Work in physics?

Back

Work is defined as the transfer of energy that occurs when a force is applied to an object and the object moves in the direction of the force. It is calculated as Work = Force x Distance.

Front

What is Power in physics?

Back

Power is the rate at which work is done or energy is transferred over time. It is calculated as Power = Work / Time.

Front

How does energy relate to work?

Back

When work is done on an object, energy is transferred to that object, resulting in a change in its energy state.

Front

Does the speed of doing work affect the amount of work done?

Back

No, the speed at which work is done does not affect the total amount of work done; work depends only on the force applied and the distance moved.

Front

What happens to the power output if the same work is done in less time?

Back

If the same amount of work is done in less time, the power output increases.

Front

Is pushing against a stationary object considered work?

Back

No, pushing against a stationary object does not count as work because there is no movement in the direction of the force.

Front

What is the unit of work?

Back

The unit of work is the Joule (J), which is defined as one Newton meter (1 J = 1 N·m).

Front

What is the unit of power?

Back

The unit of power is the Watt (W), which is defined as one Joule per second (1 W = 1 J/s).

Front

If you lift an object to a height, what type of energy does it gain?

Back

The object gains gravitational potential energy when lifted to a height.

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in its energy. Energy can be transferred through work.