CONSERVATION OF ENERGY Flashcards
(8 cards)
1
Q
Concept - Overall
A
Energy cannot be created or destroyed, yet can be transformed
2
Q
Formula
A
Sum of all initial energy = The sum of the final energy
3
Q
Kinetic
A
Energy in motion. The faster the object, the more energy it has
4
Q
Formula
A
Kinetic energy = half x mass (kg) x speed 9m/s0 squared
5
Q
Gravitational potential energy
A
Energy of height, The higher the object, the higher gravitational potential energy
6
Q
Formula
A
E = mgh - = mass (kg) x gravitational acceleration (10 m/s squared on earth0 x height (m)
7
Q
Elastic potential energy
A
Energy STORED in elastic (or spring) that has been stretched (or compressed). The further it has been stretched, the more elastic potential energy it has
8
Q
Formula
A
Elastic potential = half x stiffness (in N/m) x extension (in m) squared
