The diagram presents the temperature-time graph for hot water as it cools in an uninsulated beaker. The beaker is then insulated. The same volume of hot water, starting at the same initial temperature as before, is placed in the insulated beaker. The beaker remains in the same room as before. Which graph now shows the water’s temperature-time relationship as it cools?
Physics 0625 · IGCSE · Transfer of thermal energy