Work and Power

Front

What is the formula for calculating work?

Back

Work = Force × Distance

Front

What is the unit of work?

Back

The unit of work is the joule.

Front

What is power in relation to work?

Back

Power is the rate at which work is done.

Front

How do you calculate power?

Back

Power = Work ÷ Time

Front

If you lift a box and then carry it, when do you do work?

Back

You do work when you lift the box, not when you carry it at a constant height.

Front

True or False: Power can be measured in joules per second.

Back

True

Front

What does it mean if a machine has high power?

Back

It means the machine can do work quickly.

Front

What is the relationship between work and energy?

Back

Work is a transfer of energy.

Front

If you apply a force but do not move an object, do you do work?

Back

No, work is only done when an object moves.

Front

What is the SI unit of power?

Back

The SI unit of power is the watt.