Eli5. What makes the sound in car engine sounds.

Question

Eli5. What makes the sound in car engine sounds.

In: 1

Answer 1

Internal combustion engines have thousands of little explosions (combustion) inside them (internal).

These little explosions create sound. They also move parts inside the engine which makes even more sound. Also, when the exhaust (smoke) from the explosions comes out, that makes sound too.