Energy Flashcards
1
Q
Equation for kinetic energy
A
Kinetic energy = 0.5 x mass x (velocity)2
2
Q
Equation for GPE
A
GPE = Mass x gravitational field strength x height
3
Q
Both equations for power
A
Power = work done/time taken
Power = energy transferred/time taken
4
Q
Both equations for efficiency
A
Efficiency = useful energy output/total energy input x100
Efficiency = useful power output/total power input x100
5
Q
Equation for elastic potential energy
A
Elastic potential energy = 0.5 x spring constant x (extension)2
6
Q
Equation for change in thermal energy
A
Change in thermal energy = mass x specific heat capacity x temperature change
