Simple Machines

Front

What is a simple machine?

Back

A device that makes work easier by allowing us to apply force in a more efficient way.

Front

What are the six types of simple machines?

Back

Lever, Inclined Plane, Wedge, Screw, Pulley, and Wheel and Axle.

Front

What is a lever?

Back

A rigid bar resting on a pivot, used to help move a heavy load with one end when pressure is applied to the other.

Front

What is a first class lever?

Back

A lever where the fulcrum is located between the effort and the load.

Front

What is a second class lever?

Back

A lever where the load is located between the fulcrum and the effort.

Front

What is a third class lever?

Back

A lever where the effort is applied between the fulcrum and the load.

Front

What is a pulley?

Back

A wheel with a grooved rim around which a cord passes, used to change the direction of a force and lift heavy weights.

Front

What is an inclined plane?

Back

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

Front

What is a wedge?

Back

A piece of material that tapers to a thin edge, used to separate or secure objects.

Front

What is a screw?

Back

An inclined plane wrapped around a cylinder, used to hold objects together or lift them.