Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/31

Click to flip

31 Cards in this Set

  • Front
  • Back
Need a medium on which to travel
Mechanical waves
Particles of the medium vibrate perpendicular to the motion of waves (ie-plucked harp string)
transverse waves
Particles of the medium move parallel to the direction of the wave (ie- sound wave)
longitudinal wave
Combination of the two (ie- pebble dropped in water)
Surface/water wave
Doesn't need a medium, travels at the speed of light ina vacuum (ie- light...c- 10 x 10^8)
electromagnetic waves
solids which have wave properties (ie- electrons)
matter waves
sinlge bump or disturbance
wave pulse
wave whcih continues to move
traveling wave
time it takes for one complete vibration
Period
# of cycles per second
frequency
the distance during which motion repeats itself
wavelength
the top of the wave
crest
the botton of the wave
trough
the distance from the equilibrium position
aplitude
incoming wave that strike the boundary
incident wave
returning wave
reflected wave
upside down
inverted
if a wave travels from a more dense to a less dense medium the reflected wave is...
upright/erect
if a wave travels from a less dense to a more dense medium the reflected wave is
inverted
reflected sound waves
echoes
unit for loudness (volume)
decibel
pitches which sound unpleasant together
dissonance
pitches which sound pleasant together
consonance
ratio of frequencies is 1:2
octave
apparent change in frequency due to motion; wavelength decreases, ,frequency increases
doppler shift
a pattern which results from the interference of 2 or more waves traveling in the same medium. Always characterized by an alternating patern of nodes and antinodes
Standing wave
result of the meeting of a crest with a trough. Leads toa point of no displacement.
node
postions along the medium where the particles oscillate about their equillibrium position with the max aplitude. Are resuklt of a crest meeting a crest and a trough meeting a trough.
antinode
the angles of incidence is equal to the angle of reflection
law of reflection
changing direction of the wave at the boundary between two different media
refraction
bending of waves around a barrier
diffraction