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2.3 Transfer of thermal energy

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Question 116

The transfer of thermal energy through a liquid heated from below involves the bulk movement of the fluid.

What is this method of thermal energy transfer, and how does the density of the liquid change when it is heated?

A

Method of energy transfer: conduction; density change: increase

B

Method of energy transfer: conduction; density change: decrease

C

Method of energy transfer: convection; density change: increase

D

Method of energy transfer: convection; density change: decrease

Markscheme

2.3 Transfer of thermal energy Questions

  1. IGCSE
  2. /Physics
  3. /2.3 Transfer of thermal energy

301 exam-style questions on CIE IGCSE Physics 2.3 Transfer of thermal energy, covering 2.3.1a Thermal conductors and thermal insulators, 2.3.1b Explaining thermal conduction, 2.3.2 Convection, 2.3.3a Thermal radiation, 2.3.3b Surface colour and texture, 2.3.3c Rate of emission and absorption of radiation, and 2.3.4 Consequences of thermal energy transfer. Each one has a worked solution and a mark scheme showing where the marks go.

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