Simple Machines

Front

What is a simple machine?

Back

A device that makes work easier.

Front

What is the equation for calculating work?

Back

Work = Force times Distance.

Front

What is a lever?

Back

A simple machine that consists of a rigid bar that pivots about a fixed point.

Front

What is a screw?

Back

A simple machine that consists of an inclined plane wrapped around a cylinder.

Front

What is a pulley?

Back

A simple machine that uses a wheel and a rope to lift or lower objects.

Front

What is an inclined plane?

Back

A flat surface that is tilted at an angle to help raise or lower objects.

Front

What is a wedge?

Back

A simple machine that is a triangular-shaped tool used to split or cut objects.

Front

What is a fulcrum?

Back

The fixed point around which a lever pivots.

Front

What are two examples of a pulley?

Back

Flagpole hoist and window blinds.

Front

What is mechanical advantage?

Back

The ratio of the output force to the input force in a machine.