Energy is conserved
Definition:
Energy cannot be created or destroyed it can only be changed from one form to another.
Key points:
Energy cannot be created.
Energy cannot be destroyed.
Energy can change from one form to another.
Total energy stays the same.
Energy can move between objects.
Some energy often changes into heat or sound.
Principle of Conservation of Energy.
Energy cannot be created or destroyed.
It can only be transferred or changed from one form to another.
The total amount of energy stays constant.
Who was James joules.
James Joule was a British scientist.
Who he was
Born: 1818
Died: 1889
He studied energy, heat, and work
Why he is important
He showed that heat is a form of energy
He helped explain the principle of conservation of energy
He proved that energy can change form
Fun fact:
Even when something stops moving, its energy hasn’t vanished, it usually changes into heat or sound.