equation for energy only Flashcards
(7 cards)
1
Q
Kinetic energy
A
KE =0.5×mass×velocity2
2
Q
Gravitational potential energy
A
GPE = mass× gravity× height
gravity is 9.8
3
Q
Elastic Potential Energy
A
o.5× spring constant×extention2
k is spring constant
e is extension2
4
Q
Specific Heat Capacity
A
heat energy=mass × specific heat capacity× change in temperature
5
Q
formula for power
Use when you know the work done or energy transferred and time taken.
A
power
6
Q
Work Done
A
Work done = force × distance
7
Q
Efficiency
A
Efficiency = (Useful Output Power / Total Input Power) x 100%
