Revise GCSE Physics


Question: How do we calculate the amount of energy needed to raise the temperature of an object by a certain amount ?

We must use the Specific Heat Capacity equation.

Specific Heat Capacity Equation:

Energy = Mass x Specific Heat Capacity x Temperature Change.

Energy must be in Joules, J.

Mass must be in Kilograms, kg.

Temperature change is in oC and equals (TFinal-TInitial ).

Specific Heat Capacity is measured in units J/kgoC (Spoken as "Joules per kilogram per degree celcius").

NB None of the units will be given in the formula sheet. But the unit for SHC will give you a clue to the others!