Section 10 much excite much ignite

Front

What powers the starter motor in a car?

Back

The battery.

Front

What does the starter motor do?

Back

It spins the crankshaft to start the engine.

Front

What is an internal combustion engine (ICE)?

Back

A heat engine that uses small explosions to create motion.

Front

What mixes with fuel in a cylinder?

Back

Air.

Front

What does the spark plug do?

Back

It ignites the air-fuel mixture.

Front

What moves up and down inside the cylinder?

Back

The piston.

Front

What does the piston’s movement turn?

Back

The crankshaft.

Front

How many times does this combustion cycle repeat per minute?

Back

Hundreds of times!

Front

What kind of engine does an electric car use?

Back

It doesn't use a combustion engine—it uses an electric motor.

Front

What’s another name for the Otto engine?

Back

A four-stroke engine.