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P1 Energy and Energy Resources (GPE (Gravitational potential energy = mass…
P1 Energy and Energy Resources
Energy & Power
Equations:
Power = work done / time
P = W / t
Conservation of energy
elastic potential
Effieciency + Improving Efficiency
efficiency = useful output/input
Eff = Out / In
GPE
Gravitational potential energy = mass x gravity x height
Ep = m g h
list of energy resources
KE
kinetic = 0.5 x mass x (speed)^2
Ek = 1/2 m v^2
Work done / Friction
work done = force x distance
W = F s
P2 Energy transfer by heating
Specific heat capacity
s = q / m x ΔT
thermal conductivity
specific heat capacity experiment
Reducing heat loss in a home