Learning objective
State that energy can be transferred usefully, stored or dissipated but cannot be created or destroyed.
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
State that energy can be transferred usefully, stored or dissipated but cannot be created or destroyed
- This point belongs to Conservation and dissipation of energy, especially Energy transfers in a system.
- You need to be able to state that energy can be transferred usefully, stored or dissipated but cannot be created or destroyed.
- The key ideas to know are energy, transferred, 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
What should you know about energy can be transferred usefully, stored or dissipated but cannot be created or destroyed?
Direct answer
In Physics, this page helps you answer questions about energy can be transferred usefully, stored or dissipated but cannot be created or destroyed 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 Energy transfer and Energy conservation.
Key terms
- Energy transfer: The movement of energy from one part of a system to another, which can be useful, stored, or dissipated.
- Energy conservation: The principle that energy cannot be created or destroyed, only transformed or transferred within a system.
Common trap
Misunderstanding Energy Conservation: Remember that energy cannot be created or destroyed; it can only be transferred, stored, or dissipated.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Describe examples of energy transfers in a closed system with no net change to total energy.
Energy transfers in a system
- Explain that energy is often dissipated into less useful stores during system changes.
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