An athlete finishes a race on a warm, windy day and is covered in sweat. Even though the air temperature is warm, they feel cold as a breeze blows over their skin.
Explain, in terms of molecules and energy, why the athlete feels cold.
313 exam-style questions on CIE IGCSE Physics 2.2.3a Melting, boiling, condensation and solidification. Each one has a worked solution and a mark scheme showing where the marks go.