Conduction & Convection Flashcards
1
Q
What is the First point of Conduction?
A
Heat energy causes close particles to gain kinetic energy and to start to vibrate more about fixed position.
2
Q
What is the Second point of Conduction?
A
A temperature difference is set-up in the bar. As this increases the particles vibrate more and start to collide causing them to vibrate.
3
Q
What is the Third point of Conduction?
A
Electrons are locked out of the outer shell & become ‘free electrons’ - these carry heat.
4
Q
What is the Fourth point of Conduction?
A
This effect increases & a net heat flow occurs along the bar until & thermal equilibrium is reached.
5
Q
What does Warm Air rise?
A
Less dense so warm water rises
6
Q
What does Cold Air fall
A
More dense so Cool water falls
