What usually happens to energy that is not usefully transferred by a device?
It is stored inside the device, often as chemical or nuclear energy.
It is returned to the power supply, often as electrical energy.
It is dissipated to the surroundings, often by heating or sound.
It is destroyed by the device, usually during heating or sound.
Flashcards for Edexcel GCSE Physics Efficiency and energy resources, covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2. 25 cards, matched to the Edexcel GCSE Physics (1PH0) specification. Recall questions account for roughly 40% of marks at GCSE Physics, so these target the marks you can secure before the paper starts.
