Work and Power

Front

What is Work?

Back

Work is done 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?

Back

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

Front

What is the unit of Work?

Back

The unit of Work is the Joule (J). One Joule is defined as the work done when a force of one newton moves an object one meter.

Front

What is the unit of Power?

Back

The unit of Power is the Watt (W). One Watt is equal to one Joule per second.

Front

How do you calculate Work?

Back

Work is calculated using the formula: Work = Force x Distance.

Front

If a force of 10 N moves an object 5 m, how much work is done?

Back

50 J (Work = 10 N x 5 m).

Front

What does one Joule represent?

Back

One Joule represents the work done when a force of one newton moves an object one meter.

Front

What is the relationship between Work and Distance?

Back

Work increases with greater distance if the force remains constant.

Front

What is the relationship between Work and Force?

Back

Work increases with greater force if the distance remains constant.

Front

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

Back

20 W (Power = Work / Time = 100 J / 5 s).