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15
×
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
Radio waves
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15
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The speed of light (radiation) is _________km/second.
300,000
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15
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A wave with a large wavelength will have a ______ frequency and _____ energy
low, low
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trap
No points!
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fairy
Take points!
5
10
15
20
25
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gift
Win 20 points!
Okay!
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lifesaver
Give 10 points!
Oops!
15
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Which electromagnetic waves are used in devices such as heat lamps & TV remote controls?
Infrared rays
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15
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The distance between two crests or two troughs of a wave is called:
wavelength
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15
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What are the units of frequency?
Herz (Hz)
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15
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Which of the following electromagnetic waves is given off as heat?
Infrared waves
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banana
Go to last place!
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gift
Win 5 points!
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shark
Other team loses 5 points!
Okay!
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banana
Go to last place!
Oops!
15
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Mention the correct order of waves on the EMS from the longest wavelength to the shortest wavelength
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
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15
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How much of the electromagnetic spectrum is visible?
only a small part
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15
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True or false: as you move along the spectrum, radio to gamma waves, the wavelengths decrease in size (get smaller)
True
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15
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How are electromagnetic waves different from other waves?
They can travel through empty space
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trap
No points!
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star
Double points!
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fairy
Take points!
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15
20
25
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baam
Lose 10 points!
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15
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A wave has a frequency of 10 hz and a wavelength of 4 m. What is the velocity of the wave?
40 m/s
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15
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Electromagnetic waves that help your body produce vitamin D are called?
Ultraviolet waves
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