CKLA Unit 4 Eureka! Flashcard

Front

What is a wheel and axle?

Back

A simple machine consisting of a circular object (wheel) attached to a rod (axle) that allows it to turn, making it easier to move or lift objects.

Front

Which was invented first: telephone or clock?

Back

Clock was invented first.

Front

True or False: Electric lights existed before Thomas Edison's lightbulb.

Back

True.

Front

Which was invented first: paper or airplane?

Back

Paper was invented first.

Front

What is a screw?

Back

A simple machine that is a spiral inclined plane, used to hold objects together or lift materials.

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 piece of material with a sharp edge, used to split or cut objects apart.

Front

What is a pulley?

Back

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.

Front

What is the purpose of simple machines?

Back

To make work easier by allowing us to apply force in a more effective way.

Front

Name one example of a simple machine found in the home.

Back

Examples include a door handle (lever), a screw (screw), or a ramp (inclined plane).