Edexcel IGCSE Physics 4.7 Convection
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 movement in a box-and-tube apparatus using heated air expansion and lower density
- link rising warm air and replacement by cooler air to convection currents in clouds or near heated objects
4.7 Convection 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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