12.12 Work and Power

Front

What is power in physics?

Back

Power is the rate at which work is done.

Front

What is the formula for calculating work done?

Back

Front

What is an example of work being done?

Back

Lifting a box from the floor to a table.

Front

If a machine does 200 J of work in 4 seconds, what is its power output?

Back

50 W.

Front

If a force of 10 N is applied to move an object 5 meters, how much work is done?

Back

50 J.

Front

What is the unit of power?

Back

The unit of power is the Watt (W).

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in energy.

Front

What does it mean for a force to do work?

Back

A force does work when it causes an object to move in the direction of the force.

Front

What is the difference between power and work?

Back

Work is the total energy transferred, while power is the rate at which that work is done.

Front

How is power calculated?

Back