Edexcel IGCSE Physics 4.7 Convection Questions
Practise explaining convection in air and water, using density changes, rising warm fluid and replacement by cooler fluid in real situations.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- Explain smoke moving into a heated box by tracing warm air rising through one tube and cooler air entering through the other.
- Explain convection currents in air or water by linking heating to expansion, lower density, rising warm fluid and cooler fluid replacing it.
- Identify convection as the main transfer from a chip in a fan-assisted plastic case and explain how the fan aids it.
Edexcel IGCSE Physics 4.7 Convection Questions question 1
Hailstones are small pieces of ice that sometimes fall to the ground during storms.
Hailstones can be lifted to the top of clouds.
The diagram shows the movement of some hailstones in a cloud.
Suggest how hailstones are lifted to the top of the cloud by convection.
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