Waves Flashcards
what can waves transfer and what does it not
energy and information without transferring matter
what 5 pieces of data can be used to describe a wave
frequency
speed
wavelength
amplitude
period
what is wavelength
the distance from one crest of a wave to another
what is the amplitude
the distance from the top of a wave to the middle
what are the 2 types of waves
longitudinal
transverse
what are 2 examples of longitudinal waves
sound waves
seismic P waves
what is a longitudinal wave
where the particles move back and forth along the direction the sound is travelling
what are 2 examples of a transverse wave
EM waves
seismic S waves
what is a transverse waves
where the particles move at right angles to the direction the waves are travelling
what is the formula for the period
1/frequency
what are the 2 equations that can be used to find the speed of a wave
speed = distance/time
speed = frequency * wavelength
what are 2 ways to measure wave velocity in air
using an echo
using 2 microphones and an oscilloscope
what 2 tools are used to measure the speed of ripples on the water surface
ripple tank
strobe light
what 4 things can happen to a wave when it hit a boundary
reflected
refracted
absorbed
transmitted
when are sound waves transmitted
when the densities of the 2 materials are similar