Which of the following is a direct consequence of thermal expansion?
water boiling in a kettle
overhead power cables sagging on a hot summer day
wet clothes drying in the sun
ice melting in a glass of water
96 exam-style questions on CIE IGCSE Physics 2.2.1 Thermal expansion of solids, liquids and gases. Each one has a worked solution and a mark scheme showing where the marks go.