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15
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How does energy travel from a fireplace across the room?
Radiation
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seesaw
Swap points!
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rocket
Go to first place!
Okay!
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fairy
Take points!
5
10
15
20
25
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lifesaver
Give 20 points!
Oops!
15
×
What kind of energy transfer happens when you lie in the sun?
Radiation
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15
×
What is the energy transfer in a microwave oven?
Electrical to radiation
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15
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What happens to energy that is not usefully transferred?
It is wasted, often as heat or sound
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15
×
What energy does a wind turbine produce?
Electrical
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seesaw
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fairy
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5
10
15
20
25
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fairy
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5
10
15
20
25
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thief
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20
25
15
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In which type of heat transfer do particles not need to touch?
Radiation
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15
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If a machine uses 500 J and produces 200 J of useful energy, what is its efficiency?
40%
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15
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What energy is transferred when ice melts in your hand?
Thermal
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15
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Wearing a thick coat reduces which type of heat loss?
Convection
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15
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What energy transformation happens in a toaster?
Electrical to thermal
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15
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What kind of energy does a running engine release?
Thermal and kinetic
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seesaw
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shark
Other team loses 25 points!
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gift
Win 25 points!
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banana
Go to last place!
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15
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How does heat move in space?
By radiation
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banana
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gold
Win 50 points!
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gift
Win 25 points!
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thief
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5
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25
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