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Northern IrelandPhysicsQuick questions
Density, pressure and kinetic theory
Quick questions on Heat transfer and insulation - CCEA GCSE Physics
5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is convection?Show answer
Radiators heat a room by warming the air, which rises and circulates; sea breezes form from convection currents in the atmosphere.
What is reducing unwanted heat transfer?Show answer
Homes lose heat through the roof, walls and windows by all three methods. Insulation works by trapping air (a poor conductor that cannot form convection currents) or by reflecting radiation:
What is q1?Show answer
Name the method of heat transfer that can occur through a vacuum. [1 mark]
What is q2?Show answer
Explain why a gas is a poor conductor of heat. [2 marks]
What is q3?Show answer
State one way to reduce heat loss from a house and explain how it works. [2 marks]
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