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Which way does heat transfer?
from the less hot to the hottest
from the hottest to the less hot
from the cold to the warm
from the colder to the coldest
when does heat transfer stop happening?
IDK
never
when there is no energy left to transfer
When the temperature finally evens out
Does radiation requires matter to travel through?
yes it does.
it depends how much heat
Nope
maybe
Does conduction need contact to happen?
nope
never!
yes
it depends of how hot
What is temperature?
what we measure with a barometer
The average kinetic energy of matter
the transfer of thermal enery
the energy that makes molecules vibrate
When warm air raises up, what kind of heat transfer is that?
conduction
radiation
convection
conVIction
What happens when you add thermal energy to air?
molecules in the air move faster and air expands
the gas molecules move slower
the gases in the air cool down
the molecules contract
How does gravity help convection?
Denser matter sinks because of gravity
lighter matter sinks
matter that is more dense floats
denser matter is attracted by space
which way heat is transferred in this picture?
Cold molecules burn your hand
cold transfers from ice cube to hand
heat transfers from hand to ice cube
Heat transfers from ice cube to hand
What is a thermometer for?
To measure the average thermal energy
to measure density
To measure the cold rays
to measure mass of an object
What are fluids?
Liquids and gases
gases
liquids
solids and gases
what blocks energy transfer?
metal
a good conductor
an insulator
water
which one is the best insulator?
gold
ceramic
Iron
styrofoam
The total kinetic energy of all the particles in a substance is
thermal energy
radiation
heat
temperature
Hot air
rises
spreads out
becomes less dense
all of the above
Which is not an insulator
copper
air
plastic
rubber
