1194666
Frage 1
Frage
How many types of electromagnetic waves are there?
Antworten
-
7
-
9
-
6
Frage 2
Frage
All EM waves can be refracted, reflected and difracted
Antworten
- True
- False
Frage 3
Frage
What can happen to materials that absorb EM radiation?
Antworten
-
It explodes
-
It heats up
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It melts
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It disintegrates
Frage 4
Frage
What is the wave equation?
Antworten
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velocity= frequency X wavelength
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frequency --------------- speed X distance
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time X mass X velocity
Frage 5
Frage
Which Greek letter represents 'wavelength'?
Antworten
-
lamdaImage:njhhkf (image/png)
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thetaImage:theta.gif (image/gif)
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delta
Frage 6
Frage
Gamma rays destroy all living things in its path
Antworten
- True
- False
Frage 7
Frage
What are Gamma rays released by?
Antworten
-
Rocks
-
Living Things
-
Radioactive Material
Frage 8
Frage
Fibre Optic Broadband uses radio waves
Antworten
- True
- False
Frage 9
Frage
What are the risks of UV light?
Antworten
-
Cancer
-
Sunburn
-
Tanning
Frage 10
Frage
Radiotherapy uses microwaves to destroy cancerous cells
Antworten
- True
- False
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