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15
×
Which of the 3 processes of thermal energy transfer is the gap in a cavity wall preventing?
conduction
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15
×
Energy cannot be created or destroyed [True/false]
True
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15
×
How are the particles in a liquid arranged?
Closely packed, disordered, moving over one another.
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eraser
Reset score!
Oops!
×
seesaw
Swap points!
Okay!
×
gift
Win 20 points!
Okay!
×
banana
Go to last place!
Oops!
15
×
How are the particles of a solid arranged?
Closely packed, regular pattern, vibrating.
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15
×
How many units of electricity is 10 kWh?
10 units
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seesaw
Swap points!
Oops!
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fairy
Take points!
5
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20
25
×
shark
Other team loses 5 points!
Okay!
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banana
Go to last place!
Oops!
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monster
Reset all scores!
Oops!
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rocket
Go to first place!
Okay!
×
shark
Other team loses 20 points!
Okay!
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lifesaver
Give 20 points!
Oops!
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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banana
Go to last place!
Oops!
×
gift
Win 10 points!
Okay!
×
shark
Other team loses 5 points!
Okay!
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thief
Give points!
5
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20
25
15
×
How are the particles in a gas arranged
Free to move in random directions with a range of speeds.
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15
×
By which process does thermal energy transfer through a liquid or gas?
Convection
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15
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By what process does thermal energy transfer through a solid?
Conduction?
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15
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Heat energy always transfers from a hot object to a colder object [True/Flase]
True
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15
×
Which of the 3 processes of thermal energy transfer is the silver coated foam in a cavity wall preventing?
Convection and radiation
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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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