energy transfer by heating

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what is the best colour for a central heat radiator glossy white or dull black?
dull black
1 of 6
why does a soild have a fixed volume?
all the particles are held together in fixed positions
2 of 6
when a liquid evaporates,why is the average kinetic energy of the remaining molecules reduced?
the most energetic molecules leave the liquid, so the average kinetic energy of the remaining molecules is reduced
3 of 6
what happeds to the rate of energy transfer between an object and its surroundings if the temperature difference between them is reduced?
if the difference is reduced ,the rate of energy transfer decreases
4 of 6
which types of energy transfer involve particles?
conduction ,convection and evaporation involve particles
5 of 6
how does energy from the sun reach the earth?
energy form the sun reaches the earth as radiation that travels through space
6 of 6

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Card 2

Front

why does a soild have a fixed volume?

Back

all the particles are held together in fixed positions

Card 3

Front

when a liquid evaporates,why is the average kinetic energy of the remaining molecules reduced?

Back

Preview of the front of card 3

Card 4

Front

what happeds to the rate of energy transfer between an object and its surroundings if the temperature difference between them is reduced?

Back

Preview of the front of card 4

Card 5

Front

which types of energy transfer involve particles?

Back

Preview of the front of card 5
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swagmaster jordy

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these questions are great

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