A solar water heating system stores thermal energy in a tank of water during the day. This water is heated by solar energy and later releases that energy to warm a household.
Which mass of water and which temperature increase will result in the least amount of thermal energy being stored in the tank?
Large mass of water and large temperature increase
Large mass of water and small temperature increase
Small mass of water and large temperature increase
Small mass of water and small temperature increase
119 exam-style questions on CIE IGCSE Physics 2.2.2a Internal energy and temperature. Each one has a worked solution and a mark scheme showing where the marks go.