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Physics Topic 1 Equationsweight = ππ = ππ ππ
work done = ππ = πΉπΉ π π
kinetic energy = πΈπΈππ = 12ππ π£π£2
gravitational potential energy = πΈπΈππ = ππ ππ β
power = ππ = πΈπΈπ‘π‘
power = ππ = πππ‘π‘
efficiency =
efficiency =
How to tackle calculations questions:β’ Highlight all the numbers/quantities in the questionβ’ Highlight what the question is asking you to calculateβ’ Identify the equation that links together those quantitiesβ’ Rearrange the equation if neededβ’ Convert any units if neededβ’ Put the numbers into the equation β’ Type the same thing into your calculatorβ’ Write out your working β’ Write out your answerβ’ Check whether you need to use a specific number of decimal
places of significant figures
change in thermal energy = mass Γ specific heat capacity Γ temperature change ΞπΈπΈ =ππ ππ Ξππ
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