The energy stored in fuel (including food). This energy is released when chemical reactions take place
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Gravitational Potential Energy (GPE)
The energy of an object due to its position
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Gravitational Potential Energy Calculation
Ep = m x g x h --> Ep = change in GPE (Joules, J); m = mass (kilograms, kg); g = gravitational field strength (Newtons per kilogram, N/kg); h = change in height (Metres, m)
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Elastic Potential Energy (EPE)
The energy stored in a springy object when we stretch or squash it
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Electrical Energy
The energy transferred by an electric current
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Work Done Calculation
W = F x d--> W = work done (Joules, J); F = force (Newtons, N); d = distance (Metres, m)
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Power
The rate of transfer of energy
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Power Calculation
P = E ÷ t --> P = Power (Watts, W); E = energy transferred (Joules, J); t = time taken (seconds, s)
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Momentum
The force and speed of an object
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Momentum Calculation
p = m x v --> p = momentum (kilogram metres per second, kg m/s); m = mass (kilorgams, kg); v = velocity (metres per second, m/s)
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The Law of Conservation of Momentum
Whenever objects interact, the total momentum before the interaction is equal to the total momentum afterwards - provided that no external forces act on them ∴ the total change of momentum is zero
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Conservation of Energy
Energy cannot be created or destroyed
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Other cards in this set
Card 2
Front
Ek = 1/2 x m x v2
Back
Kinetic Calculation
Card 3
Front
The energy stored in fuel (including food). This energy is released when chemical reactions take place
Back
Card 4
Front
The energy of an object due to its position
Back
Card 5
Front
Ep = m x g x h --> Ep = change in GPE (Joules, J); m = mass (kilograms, kg); g = gravitational field strength (Newtons per kilogram, N/kg); h = change in height (Metres, m)
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