physical science

wave

periodic oscillation that transmits energy

medium

substance through which a wave transfers its energy

longitude wave

sound wave

wavelength

length of a single wave

amplitude

maxium distance that particles are displaced by a wave

refraction

bending the path of a wave as a result of a change in wave speed

sound

vibration traveling through a medium in the form of longitude pressure waves

intensity

strength of a sound wave

decibel

unit of sound intensity that is 1/10 B

infrasonic

sound that pitches BELOW the audible range

ultrasonic

sound that pitches ABOVE the audible range

what is the doppler effect

change in frequency caused by an objects motion

echo

sound heard after being reflected from an object

music

series of organized sound waves with specific pitches

crest

high point

throughs

low point

hearing wave

slinky

transfere wave

jump rope wave

what is the SI unit for frequency

hertz

ripple tank

a device used to understand waves

pitch

doe, ray, me, far, sew , la, tea, doe

whats the equation for frequency

frequency=waves over time (f=n over t)

four attributes

wavelength, amplitude, frequency, speed

period formula

period= time over waves = 1 over frequency (T= t over N = 1 over f)

speed formula

speed=wavelength*frequency ( v=nf)

speed of sound

309 m\s

chuck yager

first person to fly faster than the speed of sound