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
What type of wave is light?
Transverse
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lifesaver
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seesaw
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rocket
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baam
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15
What property of a wave is labelled on this diagram?
Wavelength
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15
What type of waves do bats use to navigate in the dark?
Ultrasound, Longitudinal
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15
What type of wave is ultrasound?
Longitudinal
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15
What type of waves are used to see the bones inside a patient?
X-ray, Transverse
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banana
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magnet
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rocket
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lifesaver
Give 15 points!
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15
What is is called when sunlight refracts through water droplets and is dispersed into a spectrum?
A rainbow
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thief
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25
gift
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rocket
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baam
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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
How does a CAT scan create a 3D image of a patient?
X-rays are used to create an image of a "slice" of the patient. Multiple image slices are stacked like a loaf of bread to create a 3D image.
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15
How is radiotherapy different to a CAT scan?
Radiotherapy is a treatment, a CAT scan produces an image for diagnosis.
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15
What is the angle between the particle oscillation and the energy propagation of a transverse wave?
90o or perpendicular
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trap
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shark
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shark
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lifesaver
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15
What word describes back and forth movement about a point?