How Do Engines Convert Fuel to Motion?

Imagine your engine is a tiny room filled with air and fuel vapor. When a spark ignites this mix, it creates a small pop. This pop pushes a metal box called a piston downward.

The piston is connected to a crankshaft. As the piston moves down, the crankshaft starts to spin. This spinning motion is what turns your car wheels.

1. Intake: Air and fuel enter the room.
2. Compression: The piston moves up to squeeze the mix.
3. Power: The spark fires, creating an explosion that pushes the piston down.
4. Exhaust: The spent gas leaves the room.

Think of it like popping a balloon to push a toy car forward!

This cycle repeats thousands of times every minute, creating smooth motion.