Physics 2 Flashcards
(9 cards)
1
Q
Filament lamps
A
As temperature increases resistance increased
2
Q
Solids transfer heat through
A
Conduction
3
Q
Fluids transfer heat through
A
Convection
4
Q
Empty space transfers heat through
A
Radiation
5
Q
Thermal conductivity
A
How easily a material can transfer heat by conductivity
6
Q
Why does conduction happen mainly in solids, and less liquids and gasses
A
The solids particles are compact in gasses and liquid they are too far apart
7
Q
Conduction
A
Vibrating particles transfer energy to neighbouring particles
8
Q
Convection
A
the movement of particles through a substance, transporting their heat energy from hotter areas to cooler areas
9
Q
Energy transferred =
Joules (j)
A
Mass x specific x temp. change
Kg heat capacity ‘C
J/kg’C
