Sound Flashcards
LO: To show understand of the sound.
What is sound?
Sound is a type of energy made by vibrations.
True or False: Sound can travel through solids, liquids, and gases.
True
Fill in the blank: Sound travels fastest in ______.
solids
What do we call the distance between two consecutive peaks of a sound wave?
Wavelength
What is the unit of measurement for frequency?
Hertz (Hz)
True or False: Higher frequency sounds are perceived as higher pitches.
True
What is the term for the loudness of a sound?
Amplitude
Fill in the blank: The ______ of a sound wave determines its loudness.
amplitude
What is it called when sound bounces off a surface?
Reflection
Which part of the ear collects sound waves?
Outer ear
What type of wave is sound classified as?
Longitudinal wave
True or False: Sound waves can travel through a vacuum.
False
What is the name of the instrument used to measure sound intensity?
Decibel meter
Fill in the blank: A sound wave with a low frequency has a ______ pitch.
low
What is the speed of sound in air at room temperature?
Approximately 343 meters per second
What phenomenon occurs when sound waves overlap?
Interference
What is the term for a sound that is too high for humans to hear?
Ultrasound
Fill in the blank: The ______ is the part of the ear that helps with balance.
inner ear
True or False: Sound can travel through water.
True
What are sound waves created by?
Vibrating objects
What is the term for a sound that is too low for humans to hear?
Infrasound
Fill in the blank: Sound is produced when an object ______.
vibrates
What is an echo?
A reflection of sound that arrives at the listener after a delay.
True or False: All sounds are caused by vibrations.
True
What happens to sound waves as they move away from the source?
They decrease in intensity.
What is the pitch of a sound determined by?
The frequency of the sound wave.
Fill in the blank: The ______ of sound is how we perceive its loudness.
volume
