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2.3 Transfer of thermal energy

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Question 50

A water tank uses an electrical heating element to heat up all the water inside it.

Where should the heating element be placed to ensure that all the water is heated as quickly and efficiently as possible?

A

At the top of the tank

B

At the bottom of the tank

C

On the side walls of the tank, near the middle

D

Running horizontally through the very center of the tank

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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