When you study energy in Year 8 Physics, it’s important to know the main types of energy. Here’s a simple guide to help you understand:

1. Kinetic Energy

• What It Is: This is the energy of things that are moving.
• Example: Think of a rolling ball or a car that's driving.
• How to Calculate It: The formula is $KE = \frac{1}{2}mv^2$, where $m$ is the weight of the object and $v$ is how fast it’s going.

2. Potential Energy

• What It Is: This is stored energy that depends on where an object is.
• Example: Imagine a book sitting on a high shelf or a spring that’s been pushed together.
• How to Calculate It: The formula is $PE = mgh$, where $m$ is the weight of the object, $g$ is the pull of gravity, and $h$ is the height.

3. Thermal Energy

• What It Is: This energy relates to how hot or cold an object is.
• Example: Think about hot water or a heater that warms up a room.

4. Chemical Energy

• What It Is: This is the energy that is stored in the bonds between atoms in substances.
• Example: Foods that you eat and batteries that power your devices.

5. Electrical Energy

• What It Is: This energy comes from electric charges.
• Example: Think of the electricity that flows through wires to power your home.

Knowing about these types of energy helps us understand how they work together to power our everyday lives!