What happens when the temperature of a solid metal bar increases?
The mass of the metal bar increases, making the metal less dense.
The mass of the metal bar increases, making the metal more dense.
The volume of the metal bar increases, making the metal less dense.
The volume of the metal bar increases, making the metal more dense.
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.