12.4 Stationary Waves Flashcards

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1
Q

What is the phase difference between 2 points on a wave

A

The fraction of a cycle by which one point is behind the other and it is expressed in degrees or radians

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2
Q

What does it mean to say that 2 waves are coherent

A

They have a constant phase difference

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3
Q

Define superpose

A

When 2 waves overlap producing a single wave

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4
Q

Define maximum

A

The point of greatest amplitude in an interference pattern as a result of constructive interference

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5
Q

Define minimum

A

The point of least amplitude n an interference pattern as a result of destructive interference

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6
Q

What is a node

A

For a stationary wave, a point where the amplitude is always zero

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7
Q

What is the fundamental mode of vibration

A

A vibration at the fundamental frequency ( a vibration at the lowest frequency at which an objet can vibrate )

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8
Q

What are minima

A

The point of least amplitude in an interference pattern as a result of destructive interference

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