Chapter 20 Major Quiz Flashcards

0
Q

what affects frequency?

A

rate of propogation (the rate at which you create a wave vibration)

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1
Q

what affects wavelength?

A

frequency and wave speed

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2
Q

what affects period?

A

frequency

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3
Q

what affects wave speed?

A

properties of the medium

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4
Q

what affects amplitude?

A

the amount of energy applied to the wave

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5
Q

how many cycles are created in a certain time period

A

frequency (Hz)

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6
Q

the time it takes to complete one cycle; has to end in the same place it starts

A

Period (T)

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7
Q

when some outside force (air resistance, etc.) takes energy outside of the system and makes the simple harmonic motion less extreme; reduces the amplitude of a wave

A

dampening

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8
Q

a repetitive motion caused by a restoring force that will keep moving forever in an ideal world

A

simple harmonic motion

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9
Q

a wave that requires a medium, or some physical object, to travel through (ex: sound)

A

mechanical waves

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10
Q

waves that can travel through space (ex: light, microwaves, x-Rays, gamma rays, radio waves)

A

electromagnetic waves

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11
Q

a wave in which the medium travels perpendicular to the path of energy

A

transverse wave

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12
Q

a wave in which the medium travels parallel to the path of energy

A

longitudinal

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13
Q

a means of transporting energy from one place to another

A

wave

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14
Q

the distance between two crests or two troughs (transverse) or two compressions or two rarefactions (longitudinal); one wave cycle

A

wavelength

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15
Q

distance from crest to midline or midline to trough

A

amplitude

16
Q

graphical representation of wave-like motion

A

sine wave

17
Q

what happens when a wave pulse hits a boundary?

A

it reflects back on the opposite side of the midpoint

18
Q

what happens when a wave pulse hits a loose end?

A

it reflects back on the same side of the midpoint

19
Q

when two identical parts of a wave are in the same place at the same time

A

constructive interference

20
Q

a type of interference that occurs at any location along the medium where the two interfering waves have a displacement in the opposite direction (a crest and a trough meet)

A

Destructive interference

21
Q

what affects the period of a pendulum?

A

Length of the pendulum

22
Q

what affects the period of a mass on a spring?

A

mass and spring constant

23
Q

the lowest frequency that creates a standing wave within a certain boundary or length

A

fundamental frequency

24
Q

appears to stand still

A

standing wave

25
Q

appears to travel from one place to the other

A

traveling wave

26
Q

when you have constructive interference and destructive interference in the same place at the same time repetitively; the crest of each wave cancels with the trough of the previous one

A

what causes standing waves?

27
Q

point of minimum displacement or no displacement on a standing wave

A

node

28
Q

two points of maximum displacement on a standing wave

A

antinode