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15
×
Why could a country not only use wind turbines and solar panels to generate its electricity?
It's not always windy and its not always sunny
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lifesaver
Give 15 points!
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gift
Win 10 points!
Okay!
×
gift
Win 20 points!
Okay!
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baam
Lose 10 points!
Oops!
15
×
What is the frequency of the India mains electricity supply (it's an A.C supply)
50 Hz
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lifesaver
Give 15 points!
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gift
Win 10 points!
Okay!
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gift
Win 5 points!
Okay!
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lifesaver
Give 25 points!
Oops!
15
×
What is the unit of power?
Watt
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boom
Lose 50 points!
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magnet
Take 10 points!
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fairy
Take points!
5
10
15
20
25
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lifesaver
Give 20 points!
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15
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What colour is the live wire in a plug?
Red
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15
×
What is the name given to a material that can conduct electricity?
A conductor
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15
×
What is the Ohms law equation?
V = I x R
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15
×
What affect is burning fossil fuels having on the environment?
Release CO2 which is a greenhouse gas - causing climate change
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trap
No points!
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gold
Win 50 points!
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rocket
Go to first place!
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thief
Give points!
5
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15
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25
15
×
When using something with moving parts, how do you reduce the wasted energy transferred as heat (due to the friction force).
Lubrication (grease, oil etc.)
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15
×
What colour is the earth wire in a plug ?
Green
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15
×
Why could a country not only use wind turbines and solar panels to generate its electricity?
It's not always windy and its not always sunny
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15
×
What type of supply does a battery produce, A.C or D.C ?
D.C
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15
×
What is a fuse?
A piece of wire which will melt and break the circuit if too much current is flowing.
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