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Physics > transverse waves > Flashcards

transverse waves Flashcards

1
Q

what is a pulse

A

a single vibration in a given medium

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2
Q

what I an transverse pulse

A

a single vibration in which the particles are displaced perpendicular to the direction of. a wave propagation/pulse

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3
Q

what is a transverse wave

A

a wave in which the particles are displaced perpendicular to the direction of wave propagation

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4
Q

what does a transverse wave consist of

A

crests ( region of displacement above rest position )

troughs 9 region of displacement below rest position )

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5
Q

what si wave lengths

A

the distance between two successive points which are in phase

the length of one complete cycle of a wave

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6
Q

what is points in phase

A

points which occupy the same position and move in the same direction

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7
Q

what is points out of phase

A

points which do not occupy the same position and do not move in the same direction

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8
Q

what is the special name of wave lengths

A

lambda

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9
Q

what is wave lengths measured in

A

in “m”

cm= x10 –2

mm= x10 –3

um= x10 –6

nm= x10 –9

pm= x10 –12

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10
Q

what is amplitude (a)

A

maximum displacement of a wave particles from rest position in m

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11
Q

what is period (T)

A

it is the time taken to make a complete wave cycle or oscillation.
measure in seconds

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12
Q

what is frequency (f)

A

the number of complete oscillations or wave cycles which pass a given point in one second.
measured in Hertz (Hz)

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13
Q

what is the formula for frequency and period

A

f= 1/T

T= 1/f

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14
Q

what is wave speed (v)

A

the rate of change of distance of a wave

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15
Q

what is the formula for speed

A

v= distance / time

v= (f)(wave length )

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16
Q

what is wave interference

A

it occurs when two waves meat at th same space ta the same time

17
Q

principle of wave

what is wave superposition

A

when two waves meet at the same point in the same time, the resultant displacement is the sum of the individual displacement of each wave

18
Q

name the two types of wave interference

A

constructive interference
Destructive interference

19
Q

What is constructive interference

A

When a crest meet and crest
Or when a trough meets a trough resulting in a max displacement

20
Q

What is destructive interference

A

When a trough meets a crest resulting in max displacement

Physics (14 decks)

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