Chapter 9 Introduction to Waves

What are the three quantities that define a wave? Mark all that apply

• wave length

• crest

• frequency

• trough

• amplitude

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What is amplitude?

• The number of waves that pass a given point in one second.

• The distance measured from a crest to a crest or trough to trough.

• The distance from a trough to a crest

• The distance from the resting point to the top of a crest or bottom of a trough.

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What does point A represent?

• Crest

• Trough

• Rarefaction

• Compression

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Transverse waves have

• Crest

• Trough

• Rarefaction

• Compression

Longitudinal waves have

• Crest

• Trough

• Rarefaction

• Compression

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If this wave chain represents 1 second, What is the frequency of the waves?

• 1 Hz

• 9 Hz 

• 3 Hz

• 6 Hz 

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Sound is which type of wave?

• Longitudinal wave 

• Transverse wave 

• Standing wave

• Surface Wave 

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What is the formula for wave speed?

• speed = wavelength x period

• speed = wavelength x amplitude 

• speed = frequency x amplitude 

• speed = wavelength x frequency 

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The Picture is an example of ________

• Diffraction 

• Longitudinal wave 

• Constructive Interference 

• Destructive Interference 

What is one property of a wave that determines how much it will diffract when it encounters an obstacle?

• speed

• amplitude 

• polarization 

• wavelength 

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