8.2 Sound Waves

the perception of sound pressure, intensity and volume; depends on the amplitude of the sound wave involved

• pitch

• timbre

• loudness

• frequency

the pattern of a disturbance caused by the movement of energy traveling through a medium as it moves away from the source of the sound

• sound wave

• light wave

• water wave

• radio wave

device or apparatus that receives electrical signals, waves, or the like, and renders them perceptible to the senses

• transmitter

• receiver

• amplifier

• converter

the membrane that separates the outer ear from the middle ear

• 
• Eustachian tube

• Auricle

• Cochlea

the middle value of a sorted list of numbers

• mean

• mode

• median

• range

the highest point of a wave above the “rest” position

• 
• Trough

• Wavelength

• Amplitude

a musical instrument consisting of a slightly concave brass plate which is either struck against another one or struck with a stick to make a ringing or clashing sound

• 
• Violin

• Piano

• Flute

device for detecting electric oscillations or waves

• detector

• oscilloscope

• transmitter

• amplifier

a repeated back-and-forth or up-and-down motion

• oscillation

• vibration

• rotation

• translation

the average of a set of values

• mean

• median

• mode

• range