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2.3 Transfer of thermal energy

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Question 7

Two similar metal cans, A and B, each contain water at 80∘C80^\circ\text{C}80∘C. Both cans are of the same size and are sealed.

The water in can A cools more slowly than the water in can B.

Which statement is correct?

A

Can A contains less water than can B.

B

Can A is painted a lighter, shinier colour than can B.

C

Can A is placed in a draughty room while can B is in still air.

D

Can A is surrounded by air and can B is surrounded by a vacuum.

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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