Progressive And Stationary Waves Flashcards

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1
Q

What is a waves amplitude

A

It’s maximum displacement from its equilibrium position

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2
Q

What is a waves frequency

A

The number of complete waves that pass a point per second

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3
Q

What is meant by the period of a wave

A

The length of time taken for one complete wave to pass a given point

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4
Q

How are frequency and period linked

A

f=1/p

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5
Q

What is wavelength

A

The distance between the same point on two adjacent waves

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6
Q

Describe a longitudinal wave

A

-particle oscillations parallel to the direction of the waves motion
-consists of rarefactions and compressions

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7
Q

Describe a longitudinal wave

A

-particle oscillations parallel to the direction of the waves motion

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8
Q

Describe a transverse wave

A

-particle oscillations are perpendicular to the direction of the waves motion

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9
Q

What is a progressive wave

A

One that transfers energy from one point to another without any transfer of matter

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10
Q

What is a standing wave

A

One that stores energy rather than transferring it

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11
Q

What is a path difference a measure of

A

How far ahead one wave is compared to another

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12
Q

What is a waves phase

A

A measure of how far through its cycle a wave is. Usually measured in radians

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13
Q

What is the phase difference between two waves at a given point

A

The difference between the phases of the two waves. It is a measure of the difference between how far each wave is through its cycle

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14
Q

What happens when two waves meet?

A

The two waves will interfere with eachother

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15
Q

What happens when two waves meet in phase

A

They will interfere and undergo constructive interference

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16
Q

What happens when two waves meet in antiphrase

A

They will interfere and undergo destructive interference

17
Q

How is a standing wave formed on a string

A

-a wave reflects from a closed end meaning two identical waves are travelling opposite directions down the same string
-at points where the waves are in phase, constructive interference occurs at an anti node
-when out fo phase destructive occurs at a node

18
Q

What is a node

A

A node is a point of minimum displacement

19
Q

What is an antinode

A

A point of maximum displacement

20
Q

What two factors does the speed of a transverse wave on a string depend on

A

1) tension
2) mass per unit length of the string

21
Q

State the equation used to calculate the speed of a transverse wave on a string

A

V=rootT/u