Answer:
1. Chemical energy to heat and light energy
2. Electrical energy to sound energy
3. Chemical energy to heat, light and sound energy
- Coal: The combustion reaction converts chemical energy into light and heat.
- Wood: Combustion converts chemical energy into light and heat.
- Petroleum: Petroleum may be burned to release light and heat or changed into another form of chemical energy, such as gasoline.
4. Electrical energy to mechanical energy
- An electric motor converts electrical energy into mechanical energy.
5. Electrical energy to mechanical, wind and
