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topic 4
eletromagnetic spectrum
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Fiki akinsanya
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Cards (10)
What type of waves are electromagnetic waves?
Transverse
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What do electromagnetic waves transfer?
Energy
(not matter)
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What type of spectrum do electromagnetic waves form?
A
continuous
spectrum
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What is the order of the electromagnetic spectrum in increasing wavelength?
Gamma
X Ray
UV
Visible
Infrared
Microwaves
Radio
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What is the highest frequency electromagnetic wave?
Gamma waves
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What is the highest energy electromagnetic wave?
Gamma waves
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What properties are shared by all electromagnetic waves?
They are all
transverse waves
They all travel at the same speed (
3x10⁸ m/s
)
They can travel through a vacuum
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What range of frequencies of electromagnetic waves can be detected by the human eye?
400-700
nanometres
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How do the speeds of EM radiation differ in a vacuum and in air?
They travel at the
same
speed
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What can happen when radiation strikes an object?
It can be
transmitted
It can be
reflected
It can be absorbed
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