ENERGY equations Flashcards
1
Q
kinetic energy =
A
1/2 × mass × speed^2
2
Q
GPE = mass × gravitational field strength × heigh
A
mass × gravitational field strength × height
3
Q
power
A
work done/time taken OR energy transferred/ time taken
4
Q
efficiency
A
=
useful energy output/
total energy input OR useful power output
/total power input
5
Q
elastic potential energy
A
elastic potential energy = 0.5 × spring constant x
(extension)^2
6
Q
change in thermal energy
A
mass ×
specific heat capacity × temperature change
