U4: Sources of Energy

Key Learning Points:

The 4 main sources (where they come from) of energy are as follow:

1. The Sun (a.k.a. Solar Energy) - Renewable Energy Resource

Most of the energy that we use comes directly or indirectly from the Sun.

2. Fuel - Non-renewable Energy Resource

When fuels are burnt, chemical energy in them are converted to heat and light energy.

3. Wind - Renewable Energy Resource

Wind is moving air and has kinetic energy.

4. Moving Water - Renewable Energy Resource

Moving water has kinetic energy.

All the above sources of energy are converted to other forms of useful energy. In this topic on Energy, you must be able to explain and identify the types of energy changes that are taking place. That is the gist of this topic.