Waves

Front 1

periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium

Back 1

wave

Front 2

a physical environment in which a wave travels

Back 2

medium

Front 3

examples of waves that need a medium, or media

Back 3

sound waves, earthquake waves, and water waves

Front 4

waves that don't need a medium to travel through

Back 4

electromagnetic waves

Front 5

examples of electromagnetic waves

Back 5

visible light, microwaves, TV and radio waves, and X rays

Front 6

particles vibrate perpendicular to the direction the wave is traveling

Back 6

transverse wave

Front 7

particles vibrate back and forth along the path that the wave moves

Back 7

longitudinal waves

Front 8

made of crests and troughs

Back 8

transverse waves

Front 9

made of compressions and rarefractions

Back 9

longitudinal waves

Front 10

how high or low the wave is from its rest position

Back 10

amplitude

Front 11

higher ___ carries more energy than small ___

Back 11

amplitude

Front 12

the space between two crests or two troughs

Back 12

wave lengths

Front 13

the # of waves produced in a given amount of time

Back 13

frequency

Front 14

shorter ____ carry more energy than longer ___

Back 14

wave lengths

Front 15

measured in hertz, Hz, (1 Hz = 1 wave per second

Back 15

frequency

Front 16

if ___ are =, high ____ waves carry more energy than low ____ waves

Back 16

amplitude; frequency

Front 17

speed at which a wave travels

Back 17

wave speed

Front 18

frequency and wave length are ____ related; if one is doubled, the other is cut in 1/2

Back 18

inversely

Front 19

the wave speed in a ___ ____ is the same no matter what the wave legth is

Back 19

certain medium

Front 20

happens when a wave bounces back after hitting a barrier

Back 20

reflection

Front 21

the bending of a wave as the wave passes from one medium to another at an angle; causes rainbows

Back 21

refaction

Front 22

the bending of waves around a barrier or through an opening

Back 22

diffraction

Front 23

amount of _____ depends on wave length and the size of the barrier or opening

Back 23

diffraction

Front 24

result of two or more waves overlapping

Back 24

interference

Front 25

a crest will overlap a crest, trough overlap a trough, when they combine they form a new wave with a larger amplitude

Back 25

condtructive interference

Front 26

crest of one wave overlaps a trough of another wave and the new wave formed is smaller

Back 26

destructive interference

Front 27

looks like it's standing still but it's actually going in both directions

Back 27

standing wave

Front 28

happens when a vibrating at or near the resonance frequency of a 2nd object makes the 2nd object vibrate

Back 28

resonance

Front 29

the speed of ___ depends on the medium; and tempature affects also affects it

Back 29

sound

Front 30

how low or high the sound seems to be

Back 30

pitch

Front 31

___ is related to the frequency of sound waves

Back 31

pitch

Front 32

high ___ = high frequency
low ___ = low frequency

Back 32

pitch

Front 33

apparent change in the frequency of a sound caused by the motion of the listener or the source of the sound

Back 33

dopper effect

Front 34

the larger the ____, the louder the sound

Back 34

amplitude

Front 35

the most common unit to express loudness is

Back 35

decibel (dB)

Front 36

reflected sound wave

Back 36

echo