Exploring Sound Waves

What is sound?

• Sound is a mechanical wave caused by the vibration of particles in a medium.
• Sound is a form of energy that does not require a medium.
• Sound is an electrical signal transmitted through wires.
• Sound is a type of light wave.

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A pattern of vibration caused by a sound energy is a

• echo
• tremor
• wave
• resonance

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The top of a sound wave is called a

• wavefront
• peak

• trough
• amplitude

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The bottom of a sound wave is called a

• crest
• peak
• node
• trough

The distance between a sound waves starting point and it peak or trough is known as its

• amplitude
• pitch
• wavelength
• frequency

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Which wave has a louder sound?

• Low Amplitude

• High Amplitude

• Neither Wave Is Louder

• Both Waves Are Equally Loud

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What is the pitch of a sound?

• The pitch of a sound is the highness or lowness of a sound.

• The pitch of a sound is the volume of the sound wave.

• The pitch of a sound is the amplitude of the sound wave.
• The pitch is the vibrations that move through the air.

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Sound frequency is determined by it's

• amplitude of sound waves
• speed of sound waves
• length of sound waves
• vibration rate of sound waves

True or False: A wavelength with a high frequency has longer wavelengths.

• False
• True

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What determines the amplitude of sound?

• The frequency of the sound wave.
• The duration of the sound wave.
• The pitch of the sound wave.
• The energy of the sound wave.

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