Simple Machines

Front

What is a simple machine?

Back

A simple machine is a device that makes work easier by allowing us to apply less force to move an object.

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

How does an inclined plane help in lifting heavy objects?

Back

An inclined plane allows a heavy object to be raised over a distance with less effort compared to lifting it straight up.

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.

Front

What is the fulcrum in a lever?

Back

The fulcrum is the fixed point around which the lever rotates.

Front

What is a wedge?

Back

A wedge is a simple machine that consists of two inclined planes joined together, used to split or cut objects.

Front

What is a screw?

Back

A screw is a simple machine that consists of a spiral inclined plane wrapped around a cylinder, used to hold objects together or lift materials.

Front

How do pulleys make work easier?

Back

Pulleys change the direction of the force needed to lift an object, making it easier to lift heavy loads.

Front

What is the purpose of a wheel and axle?

Back

A wheel and axle is a simple machine that helps reduce friction and makes it easier to move heavy objects.

Front

What is mechanical advantage?

Back

Mechanical advantage is the ratio of the output force produced by a machine to the input force applied to it.