P2 Energy transfer by heating Flashcards
Do metals conduct energy better than non-metals?
Yes.
Is copper a better conductor than steel?
Yes.
Does glass conduct better than wood?
Yes.
What does the energy transfer by conduction through a material depend on?
The thermal conductivity of the material.
What are materials that are good insulators necessary for?
Keeping you warm in winter, whether at home or outdoors..
Good insulators need to be materials that have low thermal conductivity, so energy transfer through them as < as possible.
What does the energy transfer per second through a layer of insulating material depend on?
Temperature difference across material.
Thickness of material.
Thermal conductivity of material.
When you are in sunlight, what are you absorbing?
Infrared radiation.