A block of ice is placed on a table in a warm room. What happens to the warm air immediately surrounding the block of ice when it comes into contact with the ice?
The density of the air decreases and the air rises.
The density of the air decreases and the air falls.
The density of the air increases and the air rises.
The density of the air increases and the air falls.
73 exam-style questions on CIE IGCSE Physics 2.3.2 Convection. Each one has a worked solution and a mark scheme showing where the marks go.