Simple Machines Pre Test

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.

Front

What are the six types of simple machines?

Back

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

Front

Define a lever.

Back

A lever is a rigid bar that rotates around a fixed point called the fulcrum, used to lift or move loads.

Front

What is a wheel and axle?

Back

A wheel and axle is a simple machine consisting of a larger wheel attached to a smaller axle, allowing for easier movement of loads.

Front

Explain an inclined plane.

Back

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

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

Define 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 does a pulley work?

Back

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

Front

What is the purpose of simple machines?

Back

The purpose of simple machines is to make work easier by allowing us to apply force more effectively.

Front

Give an example of a lever in everyday life.

Back

A seesaw is an example of a lever, where the board acts as the lever and the pivot point is the fulcrum.