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15
×
By which process does thermal energy transfer through space?
Radiation
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heart
Other team wins 20 points!
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fairy
Take points!
5
10
15
20
25
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gift
Win 10 points!
Okay!
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lifesaver
Give 20 points!
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banana
Go to last place!
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star
Double points!
Okay!
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gift
Win 10 points!
Okay!
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baam
Lose 25 points!
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15
×
How are the particles of a solid arranged?
Closely packed, regular pattern, vibrating.
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15
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What happens to hotter less dense air when surrounded by cooler more dense air?
The hotter less dense air rises.
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15
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What happens to the density of a gas when it is heated?
It becomes less dense.
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15
×
Which colour material would be a poor absorber and emitter of thermal radiation
Shinny silver or white
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15
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What is in between the atoms of a metal which make metals such a good conductor of thermal energy?
Free electrons
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15
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What is the name of a material which is a poor conductor of thermal energy?
An insulator
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15
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Which colour material would be a good absorber and emitter of thermal radiation
Matt black
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15
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Energy cannot be created or destroyed [True/false]
True
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15
×
How many units of electricity is 10 kWh?
10 units
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baam
Lose 25 points!
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fairy
Take points!
5
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25
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gift
Win 10 points!
Okay!
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thief
Give points!
5
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25
15
×
Why did old coal mines light a fire at the bottom of one of their two shafts?
To create a convection current and get fresh air into the mine
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15
×
Heat energy always transfers from a hot object to a colder object [True/Flase]
True
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lifesaver
Give 15 points!
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gift
Win 25 points!
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rocket
Go to first place!
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banana
Go to last place!
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