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GCSE Additional science for the 21st Century: Topic P6 The Wave Model of Radiation
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What type of wave is this?
?
Transverse
?
Longitudinal
Which label is the wavelength of this wave?
?
-
?
-
?
-
?
-
Which label is the wavelength of this wave?
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-
?
-
?
-
Which label is the amplitude of this wave?
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-
?
-
?
-
?
-
This diagram shows water waves...
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refracting
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reflecting
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diffracting
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interfering
This photo shows water waves in a ripple tank...
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refracting
?
reflecting
?
diffracting
?
interfering
This photo shows water waves...
?
refracting
?
reflecting
?
diffracting
?
interfering
This diagram show water waves...
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refracting
?
dispersing
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diffracting
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cancelling
The photo shows a beam of light being...
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dispersed
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difracted
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refracted
How do we know that light is a wave, and not a stream of particles?
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Because it can interfere and be reflected
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Because it can be refracted and reflected
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Because it can be diffracted and can interfere
This picture shows a beam of light being…
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dispersed
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diffracted
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impacted
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distracted
The Electromagnetic Spectrum.
Letter G would be...
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gamma rays
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radio waves
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infra-red
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light
The Electromagnetic Spectrum.
Letter B would be...
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radio waves
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microwaves
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ultra-violet
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x-rays
The Electromagnetic Spectrum.
Letters C, D and E would be...
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ultraviolet, x-rays, microwaves
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radio waves, infra-red, light
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ultraviolet, radio waves, infra-red
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infra-red, light, ultra-violet
Which electromagnetic wave gives you a suntan?
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infra-red
?
microwaves
?
gamma rays
?
ultra-violet
Which electromagnetic wave do we perceive as radiated heat?
?
infra-red
?
microwaves
?
gamma rays
?
ultra-violet
Which electromagnetic wave is used by mobile phones?
?
infra-red
?
microwaves
?
gamma rays
?
ultra-violet
"AM" stands for "Amplitude Modulated"
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True
?
False
“FM” stands for “Frequency Modulated”
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True
?
False
Which is the amplitude-modulated wave?
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-
?
-
?
-
?
-
What is a disadvantage of sending a signal using a digital system?
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You need more complicated equipment than you do for analogue
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The system can reject any “noise” that creeps into the signal
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The signal cannot be sent long distances
What is a disadvantage of sending a signal using an analogue system?
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You don’t need to convert the signal into digital form for transmission
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The signal can be boosted if it has travelled a long distance
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“Noise” creeps in to the signal
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