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how can heat be transferred?
heat can be transferred by radiation, conduction, or convection
what is conductions main form of heat transfer?
what is convection main for of heat transfer?
liquids and gases
infra-red radiation can be emitted by what
solids, liquids and gases
the bigger the temperature difference the slower/faster energy is transferred by heating?
all objects do
absorb infra-red radiation
the hotter an object is the more/less radiation it radiates in a given time?
what do shiny surfaces reflect of them?
what is the best absorber of heat radiation?
black matt surfaces
Why do you have a big surface area?
To release heat easier.
What is evaporation?
When water is converted from liquid form into vapour.
What happens to particles when they rise?
They become less dense
What is a U Value?
A U value is how fast heat is transferred through a material
How are sound waves caused?
Sound waves are caused by vibrating objects.
What is condensation?
When water changes from vapour or gas into a liquid. Condensation is responsible for the making of clouds.
questions on science