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Frage 1
Frage
Photocells are renewable energy source
Antworten
- True
- False
Frage 2
Frage
A photocell contains two pieces of silicon joined together to make a P-Q Junction
Antworten
- True
- False
Frage 3
Frage
One piece of the silicon has an impurity added to produce an excess of free electrons - P Junction
Antworten
- True
- False
Frage 4
Frage
Sunlight contains energy packets called:
Antworten
-
Electrons
-
Photons
Frage 5
Frage
The output from a photocell depends on:
Antworten
-
The Light Intensity
-
The type of light used
Frage 6
Frage
The sun is very hot and produces...
Antworten
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Gamma Rays
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Microwaves
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Infrared
Frage 7
Frage
The problem with Wind Turbines is...
Antworten
-
They are expensive
-
The amount of electricity generated depends on the strength of the wind
-
They are dangerous
Frage 8
Frage
Infrared Radiations pass through windows as short wavelengths
Antworten
- True
- False
Frage 9
Frage
Glass _________ this longer wavelength radiation back inside the building.
Antworten
-
Refracts
-
Reflects
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