A teacher proposes three different methods to transfer energy to a solid copper block resting on an insulated surface:
Which of the proposed methods are correct?
1 and 2 only
1 and 3 only
2 and 3 only
1, 2 and 3
229 exam-style questions on CIE IGCSE Physics 1.7.1a Energy stores and energy transfers. Each one has a worked solution and a mark scheme showing where the marks go.