true or false? 20 questions. question 1 sound is a transverse wave false its longitudinal!
TRANSCRIPT
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True or False?
20 questions
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Question 1
Sound is a transverse wave
False its longitudinal!
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Question 2
Waves are vibrations
True!
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Question 3
Amplitude is the maximum distance from the normal of a wave
True!
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Question 4
Frequency is measured in Lambda ( )
False! It is measured in Hertz!
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Question 5
Radio 1 FM (88-91MHz) has a shorter wavelength that BBC 5 Live MW
(693-909 kHz)
False!
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Question 6
You cannot reflect all waves
False! It is a property of waves!
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Question 7
All waves are visible
False! Think of the Electromagnetic waves!
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Question 8
Diffraction is where waves change direction due to a change in speed
False! This would be refraction!
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Question 9
A Tsunami is made of lots of little waves creating one big wave as in interference
of waves
False!
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Question 10
In sound the higher the frequency the higher the note
True!
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Question 11
A wave will travel faster in a more dense material
False! It will travel slower!
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Question 12
Gamma radiation has the highest frequency of the waves in the
electromagnetic spectrum
True!
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Question 13
All waves of the electromagnetic spectrum can pass through the body
False! What about light?
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Question 14
In stars a red giant is hotter than a blue dwarf and has a higher frequency
False! Blue hot is hotter than orange hot and gives off a higher frequency!
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Question 15
Waves can go around corners
False! They travel in straight lines! (Unless they diffract!)
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Question 16
Digital signals have a range of frequencies
False! Digital signals don’t have a frequency in the sense we use it here.
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Question 17
Optical fibres use dispersion to transfer from one end to the other
False! They use Total Internal Reflection!
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Question 18
When sunlight passed through a raindrop it splits into a spectrum of colours. This is because sunlight is made up of different
frequencies and wavelengths.
True!
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Question 19
A “ noisy” wave is a bad thing. Noise is interference but can be corrected.
True!
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Question 20
Write down as many uses of each type of wave as you can