Chapter 15 Energy

1. Energy

1.1. It is the ability to do work, i.e. the ability to transfer energy

2. Sources of Energy

2.1. Renewable

2.1.1. Biomass

2.1.2. hydroelectric

2.1.3. wave energy

2.1.4. geothermal

2.1.5. Solar

2.2. Non Renewable

2.2.1. coal

2.2.2. Natural Gas

2.2.3. Fossil Fuels

3. Types of Energy

3.1. Potential Energy

3.1.1. Gravitational Potential Energy

3.1.2. Elastic Potential Energy

3.1.2.1. in rubber bands or springs

3.1.3. Chemical Potential Energy

3.1.3.1. in batteries

3.2. Kinetic Energy

3.3. Heat Energy

3.4. Light Energy

3.5. Sound Energy

3.6. Nuclear Energy

4. Principle of Conservation of Energy

4.1. Energy cannot be created or destroyed. Energy can only change from one form to another. The total amount of energy before and after the change is exactly the same.