CKLA Unit 4 Eureka! Flashcard

Front

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

Back

True

Front

Who improved the filament so that light bulbs were usable and is credited with creating more than one thousand other inventions?

Back

Thomas Edison

Front

Who invented the chocolate chip cookie?

Back

Ruth Wakefield

Front

Identify the simple machine pictured: What is a wheel and axle?

Back

A wheel and axle is a simple machine that consists of a wheel attached to a smaller axle so that these two parts rotate together.

Front

Identify the simple machine pictured: 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 purpose of a pulley?

Back

A pulley is a simple machine that helps lift heavy objects by changing the direction of the force applied.

Front

What is an inclined plane?

Back

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

Front

What is a wedge?

Back

A wedge is a simple machine that is used to split or cut objects apart.

Front

What is the function of a screw?

Back

A screw is a simple machine that converts rotational motion into linear motion and is used to hold objects together.

Front

Who is known as the 'Wizard of Menlo Park'?

Back

Thomas Edison is known as the 'Wizard of Menlo Park' for his many inventions.