A metal baking tray is hotter than the room around it. It is left until it reaches room temperature.
Which statement describes the main energy change during this time?
The tray’s thermal store decreases and energy becomes spread through the surroundings.
The surroundings’ thermal stores decrease and energy becomes concentrated in the tray.
The tray’s temperature decreases but its thermal store stays the same.
The tray’s thermal store decreases and energy is destroyed in the surroundings.
100 exam-style questions on Edexcel GCSE Physics 3.2 Dissipation and efficiency, covering 3.2.1 Dissipation of energy, 3.2.2 Reducing unwanted energy transfers, 3.2.3 Efficiency, and 3.2.4 Increasing efficiency. Each one has a worked solution and a mark scheme showing where the marks go.