Question

A motorcycle running on gasoline wastes a large amount of energy mainly as A) heat energy and sound energy. B) light energy and kinetic energy. C) heat energy and chemical energy. D) sound energy and chemical energy.

Answer 1

A motorcycle mainly wastes energy as heat energy and sound energy. In the engine, chemical energy is transformed into mechanical energy. However, the engine is inefficient and much of the chemical energy is lost as heat energy. Also, some of the energy is transformed to sound energy. This explains why the motorcycle is noisy and has an exhaust pipe.