Learning objective
Explain energy transfers in cooling and heating systems.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Thermodynamics and engines
Subtopic
Reversed heat engines
Aqa A Level PhysicsEngineering physics
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Quick explanation
Explain energy transfers in cooling and heating systems
- This point belongs to Thermodynamics and engines, especially Reversed heat engines.
- You need to be able to explain energy transfers in cooling and heating systems.
- The key ideas to know are systems, energy, and cooling.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
systemsenergycoolingtransfersheating
Why it matters
This objective helps connect Reversed heat engines to exam-style questions, flashcards, and revision notes for Thermodynamics and engines.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- State the first law of thermodynamics.
First law of thermodynamics
- Distinguish heat supplied, work done and internal energy change.
First law of thermodynamics
- Apply sign conventions consistently.
First law of thermodynamics
- Analyse energy transfers in thermodynamic processes.
First law of thermodynamics
- Describe common non-flow thermodynamic processes.
Non-flow processes