Magazine 7 Review

Small dots that form a picture on a screen are

• diodes

• silicons

• pixels

• filaments

The moving assembly line helped improve

• interchangeable parts

• mass production

• technology

• engines

Who invented the first modern computer?

• Henry Ford

• Alexander Graham Bell

• Thomas Edison

• Howard Aiken

Thomas Edison had over 1000

• patents

• children

• ideas

• diodes

A filament is found in a

Which of these inventions were discovered by accident?

• modern computer

• safety glass

• light bulbs

• rockets

A negative change that happened with automobiles was

• Traffic got much worse.

• Noise and air pollution increased.

• Fossil fuels were being used up.

• All of these answers are correct.

True or False: Henry Ford invented the light bulb.

• True

• False

Silicon is a substance found in ________ that is used in computers and electronics.

• oxygen

• soil

• water

• sand

An internal combustion engine is one that

• burns fuel inside of it.

• uses wind and water.

• is used only in motorcycles.

• run by a computer.