Edexcel International GCSE Physics
Edexcel International GCSE Physics Energy Transfers Exam Questions
Free Edexcel International GCSE Physics exam questions on Energy Transfers, with mark schemes. Covers energy stores, transfers, efficiency, Sankey diagrams and heat transfer.
Energy Transfers exam questions
These packs of real past exam questions cover the whole of Section 4: Energy Resources and Energy Transfers, including Energy Transfers. Work through every question on this sub-topic, then mark your answers against the mark scheme.
About Edexcel International GCSE Physics Energy Transfers
This sub-topic covers energy.
What you need to know
- Stores Kinetic, gravitational, elastic, thermal and chemical.
- Efficiency Useful output over total input.
- Heat transfer Conduction, convection and radiation.
Common mistakes in Energy Transfers
- Efficiency over 100%.
- Mixing conduction and convection.
Try two Energy Transfers exam-style questions
1. A lamp uses 100 J and gives 20 J of light. Find efficiency. (1 mark)
Show the mark scheme answer
20%.
2. Explain how convection works. (2 marks)
Show the mark scheme answer
Heated fluid expands and becomes less dense (1), rising while cooler fluid sinks (1).
Energy Transfers FAQs
What does this cover?
Energy stores, efficiency and heat transfer.
Which practical links here?
Investigating insulation.
Revise this topic with flashcards: Edexcel IGCSE Physics 4PH1 Flashcards, with mark scheme answers for Anki and Quizlet.