Question
click below
click below
Question
Normal Size Small Size show me how
ch 22
Stack #73413
Question | Answer |
---|---|
what is the role of 'loose' electrons in heat conductors? | they transfer energy through the conducting material |
what does an insulator do? | moves heat slowly whereas conductors move heat quickly |
what is cold(why isnt it tangeable?) | cold is the lack of heat |
How does Archimede's principle relate to convection? | warmed air is less dense and is buoyed upward |
what is radiant energy? | any energy that is transmitted by radiation- including heat |
length of waves at low and high temp | low temp-long waves; high temp-short waves |
Why does a good absorber of radiant energy appear black? | it reflects no radiant energy and therefore no light |
is a good absorber of radiation a good emitter or a poor emitter? | good emitter |
does newton's law of cooling apply to warming as well as to cooling? | yes |
what is terrestrial radiation? | evergy that earth radiates |
how come solar radiant energy is composed of short waves, yet terrestrial radiation is composed of relatively longer waves? | because earth isn't hot enough to produce short waves |
greenhouse effect? | heat comes in but cant get out |