Java Games: Flashcards, matching, concentration, and word search.

"The Nature of Sound"

Vocabulary based on Holt Science & Technology "Sound & Light" Chapter 2

AB
waveA disturbance that transmits energy through matter or space.
mediumA substance through which a wave can travel.
outer earThe part of the ear that acts as a funnel to direct sound waves into the middle ear.
middle earThe part of the ear where the amplitude of sound vibrations is increased.
inner earThe part of the ear where vibrations created by sound are changed into electrical signals for the brain to interpret.
pitchHow high or low a sound is perceived to be.
infrasonicThe term describing sounds with frequencies lower than 20 Hz.
ultrasonicThe term describing sounds with frequencies higher than 20,000 Hz.
Doppler effectThe apparent change in the frequency of a sound caused by the motion of either the listener or the source of the sound (refers to sound only).
loudnessHow loud or soft a sound is perceived to be.
decibelThe most common unit used to express loudness.
noiseAny undesired sound, especially nonmusical sound, that includes a random mix of pitches.
echoA reflected sound wave.
echolocationThe process of using reflected sound waves to find objects.
interferenceA wave interaction that occurs when two or more waves overlap.
sonic boomThe explosive sound heard when a shock wave from an object traveling faster than the speed of sound reaches a person's ear.
standing waveA wave that forms a stationary pattern in which portions of the wave do not move and other portions move with a large amplitude.
resonanceWhat occurs when a object vibrating at or near a resonant frequency of a second object causes the second object to vibrate.
diffractionThe bending of waves around a barrier or through an opening.
sound qualityThe result of several pitches blending together through interference.


Teacher
VA

This activity was created by a Quia Web subscriber.
Learn more about Quia
Create your own activities