Learning objective
Explain that energy is often dissipated into less useful stores during system changes.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Conservation and dissipation of energy
Subtopic
Energy transfers in a system
Study support
Understand this objective
Quick explanation
Explain that energy is often dissipated into less useful stores during system changes
- This point belongs to Conservation and dissipation of energy, especially Energy transfers in a system.
- You need to be able to explain that energy is often dissipated into less useful stores during system changes.
- The key ideas to know are into, energy, and that.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Energy transfers in a system to exam-style questions, flashcards, and revision notes for Conservation and dissipation of energy.
Quick student answer
How do you explain energy is often dissipated into less useful stores during system changes?
Direct answer
In Physics, this page helps you answer questions about energy is often dissipated into less useful stores during system changes within Conservation and dissipation of energy. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are dissipated energy and less useful store.
Key terms
- dissipated energy: Energy that is transferred into less useful forms, such as heat, during a system change.
- less useful store: A form of energy, like thermal energy, that is not readily available for performing useful work.
Common trap
Misunderstanding Energy Dissipation: Emphasize that energy is conserved and can only be transferred or dissipated into less useful stores.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- State that energy can be transferred usefully, stored or dissipated but cannot be created or destroyed.
Energy transfers in a system
- Describe examples of energy transfers in a closed system with no net change to total energy.
Energy transfers in a system
- Use the term wasted energy to describe energy transferred in less useful ways.
Energy transfers in a system
- Explain how lubrication reduces unwanted energy transfers by reducing friction.
Energy transfers in a system
- Explain how thermal insulation reduces unwanted energy transfers by heating.
Energy transfers in a system