Which parts of the Electromagnetic spectrum are ionising?
UV, X-ray and Gamma rays
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15
How can you use a strobe light to measure the frequency of a wave on a string?
Set the strobe frequency so that the wave on the string appears to be still. The frequency of the strobe will now match the frequency of the wave.
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15
How is a fluoroscope different to an x-ray you would have to check for a broken arm.
The fluoroscope uses a fluorescent screen to create a real time (moving) image.
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15
Why is ionising radiation dangerous?
Ionising radiation can damage, kill or cause cells to mutate (potentially becoming cancerous)
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15
What type of wave is a Radio wave?
Transverse
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15
When measuring something small, but that repeats many times (such as the wavelength of a water wave), how can you increase the accuracy of your measurement?
Measure multiple and then divide by the number you measured (e.g. measure 10 wavelengths and then divide by 10)
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15
A prism can be used to split white light into the colours that make it up. What is this process called??
Refraction or dispersion
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15
What type of waves are used to create thermal images?
Infra red, Transverse
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banana
Go to last place!
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star
Double points!
Okay!
shark
Other team loses 5 points!
Okay!
lifesaver
Give 20 points!
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banana
Go to last place!
Oops!
star
Double points!
Okay!
rocket
Go to first place!
Okay!
lifesaver
Give 25 points!
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lifesaver
Give 5 points!
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shark
Other team loses 10 points!
Okay!
shark
Other team loses 25 points!
Okay!
thief
Give points!
5
10
15
20
25
15
When a wave reflects from a surface, what is the link between the angle of incidence and the angle of reflection?
Both angles are the same
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15
Which type of wave can travel through a vacuum?
Transverse
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15
What type of wave is a soundwave?
Longitudinal
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15
What property of a wave is labelled on this diagram?