Sound Waves

The ______________ of the wave determines its loudness which is measured in decibels

• Height

• length

Which of the following best describes the process by which sound waves are transferred into perceivable sound?

• Sound waves travel through the air to the ear lobe, where they hit the 3 bones in the ear (the hammer, anvil, and stirrup). Which then hits the eardrum and funnels them into the ear canal. Then they go to the auditory nerve which sends information to the cochlea. At the cochlea, the hair cells transmit information to the auditory cortex which contains the parietal cortex.

• Sound waves travel through the air to the ear lobe, which funnels them into the ear canal. At this point, they hit the ear drum which vibrates the 3 bones in the ear (the hammer, anvil, and stirrup). These bones in turn send vibrations to the cochlea which has tiny hair like nerves that relay the information (transduction) along the auditory nerve to the auditory cortex in the temporal lobe.

What type of wave is a sound wave?

• Transverse wave

• Longitudinal wave

• Electromagnetic wave

• Surface wave

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DOK Level 2: Skill/Concept

Which of the following is a property of sound waves?

• Wavelength

• Color

• Brightness

• Reflection

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Which characteristic of a sound wave determines its pitch?

• Amplitude

• Frequency

• Wavelength

• Speed

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What is the relationship between frequency and wavelength in a sound wave?

• They are directly proportional

• They are inversely proportional

• They are unrelated

• They are equal

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DOK Level 2: Skill/Concept

How does the medium affect the speed of sound waves?

• Sound travels faster in gases than in solids

• Sound travels faster in solids than in gases

• Sound travels at the same speed in all media

• Sound cannot travel through liquids

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DOK Level 2: Skill/Concept

Which of the following is an application of sound waves?

• X-rays

• Ultrasound imaging

• Infrared cameras

• Microwaves

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How does the speed of sound change with temperature?

• Speed decreases as temperature increases

• Speed increases as temperature increases

• Speed remains constant

• Speed decreases as temperature decreases

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DOK Level 2: Skill/Concept

Which of the following best describes the Doppler effect?

• Change in frequency due to the motion of the source or observer

• Change in amplitude due to the motion of the source or observer

• Change in wavelength due to the motion of the source or observer

• Change in speed due to the motion of the source or observer

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DOK Level 2: Skill/Concept