Learning objective
Calculate changes in energy when a system is changed by work done by forces.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Energy changes in a system, and the ways energy is stored before and after such changes
Subtopic
Energy stores and systems
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Quick explanation
Calculate changes in energy when a system is changed by work done by forces
- This point belongs to Energy changes in a system, and the ways energy is stored before and after such changes, especially Energy stores and systems.
- You need to be able to calculate changes in energy when a system is changed by work done by forces.
- The key ideas to know are system and work done.
- 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 stores and systems to exam-style questions, flashcards, and revision notes for Energy changes in a system, and the ways energy is stored before and after such changes.
Quick student answer
How do you calculate changes in energy when a system is changed by work done by forces?
Direct answer
In Physics, this page helps you answer questions about changes in energy when a system is changed by work done by forces within Energy changes in a system, and the ways energy is stored before and after such changes. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are work done and system.
Key terms
- work done: The energy transferred when a force is applied to move an object over a distance.
- system: An object or a group of objects being considered together in the context of energy changes.
Common trap
Common Mistake in Energy Calculation: Ensure to clearly differentiate between work done and energy changes in a system. Remember that work done by forces results in energy transfer, which can change the energy stores in the system.
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Define a system as an object or a group of objects being considered together.
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- Describe how the way energy is stored changes when a physical system changes.
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- Describe energy-store changes when an object is projected upwards.
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- Describe energy-store changes when a moving object hits an obstacle.
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- Describe energy-store changes when an object is accelerated by a constant force.
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