Energy Flashcards
1
Q
What is the equation for:
kinetic energy
Elastic potential energy
A
Ek = 1/2 x m x v2
Kinetic energy Mass velocity
Joules Kg. M/s
Ee = 1/2 x k x e2
Elastic Spring constant extension
Joules. N/m. m
2
Q
What is the equation for gravitational potential energy?
A
GPE= MgH
GPE Mass gfs. Height
3
Q
Equation for work done
x2
A
Work done = force x distance
W = F x D
Work done = energy transferred
W = E
4
Q
Equations for power
x2
A
Power = energy transferred / time P = E/T
Power = work done / time P= W/T
5
Q
Efficiency =
A
Useful output / total input
6
Q
Specific heat
A
E = m x c x temp
Mass x specific heat x temperature
