Energy Flashcards
1
Q
Kinetic Energy =
A
Kinetic Energy (Joules/J) = 1/2 x Mass (Kg) x Speed^2 (Velocity/V)
2
Q
Gravitational Potential Energy =
A
Gravitational Potential Energy (Joules/J) = Mass (Kg) x Gravitational Field Strength (Newtons per Kilogram / N/Kg) x Height (Metres)
3
Q
Elastic Potential Energy =
A
Elastic Potential Energy (Joules/J) = 1/2 x Spring Constant (Newtons per Metre / N/m) x Extension^2 (Metres)
4
Q
Thermal Energy =
A
Thermal Energy (Joules/J) = Mass (Kg) x Specific Heat Capacity (J/KgC) x Temperature Change (Degrees Celsius/C)
5
Q
Power =
A
Power (Watts/W) = Work Done/Energy transferred (Joules/J) ÷ Time Taken (Seconds)
6
Q
Efficiency =
A
Efficiency (%) = Useful Energy Output ÷ Total Power Input x 100
