Physics Paper 2
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What happens when an object falls and there's no air resistance? - Energy lost from the g.p.e store = energy gained in the kinetic energy store 
 
What does air resistance do when acting against falling objects? - It causes some energy to be transferred to other energy stores e.g. the thermal energy stores of the object and the surroundings 
 
Elastic potential energy formula - E=1/2ke² 
E.P.E(J) = 0.5 x spring constant(N/m) x extension²(m) 
 
What is SHC? - The amount of energy needed to r...
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What happens when an object falls and there's no air resistance? - Energy lost from the g.p.e store = energy gained in the kinetic energy store 
 
What does air resistance do when acting against falling objects? - It causes some energy to be transferred to other energy stores e.g. the thermal energy stores of the object and the surroundings 
 
Elastic potential energy formula - E=1/2ke² 
E.P.E(J) = 0.5 x spring constant(N/m) x extension²(m) 
 
What is SHC? - The amount of energy needed to r...