Work, Power, & Simple Machines

Front

What is a simple machine?

Back

A simple machine is a device that changes the direction or magnitude of a force, making work easier. Examples include levers, pulleys, and inclined planes.

Front

What are the six types of simple machines?

Back

The six types of simple machines are: lever, inclined plane, wedge, screw, pulley, and wheel and axle.

Front

What is a lever?

Back

A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum. It is used to lift or move loads.

Front

What is the formula for work?

Back

Work = Force x Distance.

Front

What is the unit of work?

Back

The unit of work is the Joule (J).

Front

What is power?

Back

Power is the rate at which work is done or energy is transferred over time.

Front

What is the unit of power?

Back

The unit of power is the Watt (W).

Front

How do you calculate power?

Back

Power = Work / Time.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help raise or lower objects with less effort.

Front

What is a pulley?

Back

A pulley is a simple machine that consists of a wheel on an axle or shaft that is designed to support movement and change the direction of force.