Fssa Waves Review

As waves move forward, only ___ is carried by the waves. 

• matter
• air
• energy
• particles 

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The amplitude of sound is directly related to its ___ 

• pitch
• loudness
• frequency
• wavelength

Hertz is the measure of a wave's ___. 

• amplitude
• wavelength
• pitch
• frequency

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NGSS.HS-PS4-1

What determines the amplitude of a compressional wave 

• size of wavelength
• frequency of the wave
• thickness of compression
• height of crest 

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By what process is energy transferred when sound waves travel through air? 

• absorption of sound waves by surfaces
• vibrations of perpendicular electric and magnetic fields
• flow of air currents away from the sound source to the listener
• consecutive, repeating collisions or interactions of air particles 

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The speed of a sound wave depends on the temperature and medium it travels through. In which medium will sound travel with the greatest amount of energy?

• solid
• gas
• plasma
• liquid

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Sound with a high pitch has a high __.

• amplitude
• frequency
• wavelength
• wave velocity 

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As energy is added to a transverse wave, its intensity ____or ____ can increase. 

• frequency, wavelength
• pitch, wavelength
• amplitude, frequency
• wavelength, pitch 

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When the sound source has already passed you, it appears that the sound's _____. 

• wavelength decreases
• pitch decreases
• frequency increases
• velocity decreases

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Ultrasonic waves are waves that have ____ above 20,000 Hz. (Think what is measured in Hertz)

• wavelentgh
• amplitude
• frequency
• compression

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NGSS.HS-PS4-1