Work and Power

Front

What is work in physics?

Back

Work measures how much effort is applied over a certain distance.

Front

True or False: Work is done on an object when the object moves in the same direction as the force applied.

Back

True

Front

What is the unit of work?

Back

The unit of work is the joule.

Front

How is work calculated?

Back

Work = Force x Distance (W = F x d).

Front

If a force of 70 N is applied over a distance of 1.1 m, how much work is done?

Back

77 J.

Front

What is the relationship between work and energy?

Back

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

Front

What does one joule represent?

Back

One joule is the work done when a force of one newton moves an object one meter.

Front

What is power in physics?

Back

Power is the rate at which work is done.

Front

What is the unit of power?

Back

The unit of power is the watt.

Front

How is power calculated?

Back

Power = Work / Time (P = W / t).