Sound Waves and Hearing Assessment

Ultra sonic waves are below the human hearing range.

• True
• False

An echo is simply a reflected sound wave.

• True
• False

Tags

NGSS.MS-PS4-2

Sound travels as a ______________ wave.

• transverse
• electromagnetic
• longitudinal
• gamma

Tags

NGSS.MS-PS4-1

The speed of sound depends on what two things?

• the medium and the wave
• the medium and the temperature
• the absorption rate and frequency
• the frequency and the amplitude

The changing pitch of a police's car siren as it moves by you is an example of

• the Doppler Effect
• resonance
• the speed of sound
• intensity

Which part of the ear do sound waves enter through?

• ear canal
• ear drum
• earlobe
• cochlea

Sound waves with frequencies below the normal human range of hearing are called

• ultrasound
• infrasound
• resonance
• decibels

Tags

NGSS.MS-PS4-2

Loudness, or sound level is measured in units called

• decibels
• hertz
• meters/second
• watts/square meter

Tags

NGSS.MS-PS4-1

Which term refers to how high or low a sound seems to a person?

• reflection
• intensity
• pitch
• frequency

What occurs when two or more sound waves interact?

• interference
• Doppler Effect
• resonance
• ultrasound