Heat Transfer Flashcards
(6 cards)
0
Q
What falls and what rises in convection currents?
A
The cold fluid falls and the hot fluid rises
1
Q
When can convection currents form?
A
When liquids and gases are heated
2
Q
Why do flames go upwards?
A
Because they are less dense and heat rises
3
Q
Does radiation require a medium?
A
No
4
Q
What is better at radiating. Matt or shiny surfaces?
A
Shiny
5
Q
What is conduction?
A
The transfer of heat energy through solids
