Physics Flashcards
1
Q
Is conduction transferred by particles or waves?
A
Particles.
2
Q
Why is metal a good conductor?
A
It has delocalised free electrons which allow current and heat to pass through with ease.
3
Q
Is convection transferred by particles or waves?
A
Particles
4
Q
Is radiation transferred by particles or waves?
A
Waves.
5
Q
What is the hottest colour of radiation?
A
White.
6
Q
Does loft insulation protect against convection or conduction?
A
Convection.
7
Q
Does cavity wall insulation reduce heat loss through convection or conduction?
A
Conduction.
8
Q
What do draft excluders reduce?
A
They reduce heat loss through gaps under doors.
9
Q
What is the coolest colour of radiation?
A
Black
10
Q
What does convection take place with?
A
Gases and liquids.
