A small piece of hot metal is held near a large, cool reservoir containing 4.0 × 107 kg of water.
Which statement is correct?
If the metal is dropped into the reservoir, the metal will lose much more internal energy than the water gains.
The internal energy of a substance depends only on its temperature.
The internal energy of the water in the reservoir is lower than the internal energy of the small piece of metal.
When the temperature of the piece of metal falls, its internal energy will decrease.
151 exam-style questions on CIE IGCSE Physics 2.1.2a Particle structure and motion in solids, liquids and gases. Each one has a worked solution and a mark scheme showing where the marks go.