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E = Pt
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E (k) = 1/2
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AQA Physics equation

GCSE equations that need to be learnt

QuestionAnswer
E = Pt Energy = power x time
E (k) = 1/2
E (p) = mgh Gravitational potential energy = mass x gravitational field strength x height change
w = mg Weight = mass x gravitational field strength
W = Fs work done = force x distance
What is the efficiency equation? Efficiency = useful energy transferred / total energy input
V = IR Potential difference = current x resistance
E = VQ Energy = potential difference x charge
Q= It Charge = current x time
P = VI Power = potential difference x current '
v = fλ Wave speed = frequency x wavelength
Created by: bridge_w_8
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