Energy on the move
Definition.
Energy transfer is how energy moves from one object or place to another.
Key Points.
Energy moves from one place to another this is called energy transfer.
Energy can change form while moving.
Energy is never lost, just transferred or transformed.
Energy can move without objects moving.
Main ways energy transfers.
By heating.
By waves.
Light from the Sun.
Sound from a speaker.
By electricity.
By forces.
What is energy?
Energy is the ability to do work or cause change.
Key points.
Energy is not created or destroyed.
It is transferred and stored.
It comes in different stores.
What are energy stores?
Energy stores are the different ways energy is kept in objects or systems until it is transferred.
Key points.
Energy is never used up.
It moves between stores.
It transfers by heating, waves, electricity, or forces.
The 8 energy stores.
Kinetic.
Thermal.
Chemical.
Gravitational potential.
Elastic potential.
Nuclear.
Magnetic.
Electrostatic.
Fun fact.
The Sun’s energy takes 8 minutes to reach Earth, and it travels 150 million km.