Work and Power

Front

What is the formula for calculating power?

Back

Power = Work / Time

Front

What is power?

Back

Power is the rate at which work is done.

Front

When is work done on an object?

Back

Work is done when the object moves in the same direction as the force applied.

Front

Does pulling at an angle increase the work done?

Back

No, pulling at an angle does not increase the work done.

Front

What happens to work when you move an object farther?

Back

The farther you move an object, the more work you do.

Front

What unit is used to measure work?

Back

The unit of work is the Joule (J).

Front

What is the relationship between work and energy?

Back

Work is a transfer of energy.

Front

If you do 100 Joules of work in 5 seconds, what is your power output?

Back

Power = 100 J / 5 s = 20 Watts.

Front

Is it true that power can be increased by doing the same amount of work in less time?

Back

Yes, doing the same work in less time increases power.

Front

What is the unit of power?

Back

The unit of power is the Watt (W).