Learning objective
Explain how lubrication reduces unwanted energy transfers by reducing friction.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
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Flashcards
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Questions
Topic
Conservation and dissipation of energy
Subtopic
Energy transfers in a system
Study support
Understand this objective
Quick explanation
Explain how lubrication reduces unwanted energy transfers by reducing friction
- This point belongs to Conservation and dissipation of energy, especially Energy transfers in a system.
- You need to be able to explain how lubrication reduces unwanted energy transfers by reducing friction.
- The key ideas to know are lubrication.
- 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 lubrication reduces unwanted energy transfers by reducing friction?
Direct answer
In Physics, this page helps you answer questions about lubrication reduces unwanted energy transfers by reducing friction 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 lubrication and friction.
Key terms
- lubrication: The application of a substance to reduce friction between surfaces in contact, thereby minimizing unwanted energy transfers.
- friction: The resistance that one surface or object encounters when moving over another, which can lead to energy dissipation.
Common trap
Misunderstanding Lubrication: Explain that lubrication reduces friction but does not eliminate it entirely.
Related questions
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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
- 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 thermal insulation reduces unwanted energy transfers by heating.
Energy transfers in a system