We can use the equation below to calculate energy changes. You will be given this equation in the exam so you do not need to learn it. The Greek symbol Δ ('delta') means 'a change in' and the Greek symbol θ ('theta') means 'temperature'. Therefore, Δθ means 'a change in temperature'. The change in temperature is equal to the final temperature minus the initial temperature, and we measure mass in kilograms.

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