Creating a Personal Budget — Unit test Answers
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Sound Wave A is moving through a medium that is decreasing in temperature.Sound Wave B is moving from a liquid to a gas medium.
A
They will speed up.B
They will increase the density of their medium.C
They will slow down.D
They will decrease the density of their medium.22
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What do diffraction and refraction have in common?
A
They both involve interference.B
They both involve wave interactions.C
They both involve reflection.D
They both involve construction.23
Which equation should be used to calculate the speed of a wave?
A
speed = frequency x wavelengthB
speed = frequency x hertzC
speed = period x wavelengthD
speed = period x hertz24
What is occurring when two waves traveling along the same medium meet and cancel each other out?
A
destructive interferenceB
constructive interferenceC
reflectionD
refraction25
Adam observed properties of four different waves and recorded observations about the frequency and volume of each one in his chart.
A
Only the sound quality of waves Y and Z can be compared.B
The sound quality of all of the waves can be compared.C
The sound quality of waves W and X can be compared.D
The sound quality for these waves cannot be compared.Did you find these answers helpful?
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