Convection Flashcards
0
Q
Example of it?
A
Radiator heating a room
1
Q
What can it take place in?
A
Liquids and gases
2
Q
What is it?
A
Involves bulk movement in liquids or gases/ heat energy transfer in particles
3
Q
How is heat energy transferred?
A
In particles
4
Q
If something Is heated what happens to the materials particles?
A
They expand becoming less dense
5
Q
So what does the change in density cause?
A
Convection
6
Q
Density formula?
A
Density = mass divided by volume
7
Q
What happens when gas is heated?
A
It expands meaning it’s less dense so rises
8
Q
What is a convection current?
A
When hotter less dense fluid rises and replaced by cooler more dense fluid flowing downwards
