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2.3.2 Convection

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Question 60

Air above a heater is warmed and expands. How does this thermal expansion lead to the formation of a convection current in the room?

A

The density of the warmed air decreases, causing it to rise.

B

The density of the warmed air increases, causing it to rise.

C

The mass of the individual air molecules decreases, causing them to rise.

D

The individual air molecules expand, causing them to rise.

Markscheme

2.3.2 Convection Questions

  1. IGCSE
  2. /Physics
  3. /2.3.2 Convection

73 exam-style questions on CIE IGCSE Physics 2.3.2 Convection. Each one has a worked solution and a mark scheme showing where the marks go.

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