The metal cooling plate at the top of a refrigerator is cold.
What happens to the warmer air inside the refrigerator when it comes into contact with the cold cooling plate?
The density of the air decreases and the air falls.
The density of the air decreases and the air rises.
The density of the air increases and the air falls.
The density of the air increases and the air rises.
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.