Heat Transfers Flashcards
Why are metals good conductors?
Their electrons are more free meaning that they are able to transfer energy from atoms with more to less quickly. (Free Electrons)
What is temperature?
a measure of how hot or cold an object is, which is determined by the average amount of energy in the particles of the kinetic store
there are only heat transfers when..
One substance has less thermal energy in their energy store.
In what form does radiation travel?
In waves.
What surfaces are the best emitters of radiation?
Matt black surfaces.
What surfaces are the worst emitters of radiation?
Shiny silver surfaces.
What surfaces are the best at absorbing heat?
Matt black surfaces.
Order these substances by conduction of heat from best to worst:
Non-metals, vacuum, liquids, Gases, metals
Metals Non-metals Liquids Gases Vacuum
