Question

A racecar burns gasoline to power its engine. As the car is racing around a track, what energy is involved in the system? Check all that apply.

mechanical energy

chemical energy

thermal energy

electromagnetic energy

Answer 1

- Mechanical energy — yes (kinetic energy of the car, rotating wheels, etc.).
- Chemical energy — yes (energy stored in the gasoline).
- Thermal energy — yes (combustion produces heat; waste heat is released from engine/exhaust).
- Electromagnetic energy — typically no for the main energy flow. (There is some EM radiation from hot engine parts and small electrical systems like the ignition, but the primary energy conversions are chemical → thermal → mechanical.)