← Physics (4PH1)
Q1 / 5
Energy transfer
Foundation
2 marks
How does convection transfer heat in a liquid?
A
Warm liquid expands, becomes less dense, rises; cool liquid sinks — sets up convection current
B
Hot liquid sinks and cold liquid rises
C
Molecules vibrate faster and pass energy directly to neighbours only
D
Convection only occurs in gases, not liquids
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