1
The sum of potential and kinetic energy in an object.
2
It can power machines. We can transform this energy.
3
It is a type of energy that can be changed into other forms.
4
It is formed during chemical reactions.
5
It is a type of energy that comes from motion.
6
We need ir to make light, heat and sound.
7
Takes the form of heat.
8
It can be natural or artificial. Most of them comes from sun.
9
It comes from the vibration of the air that travel in all directions.
