# Wave topic definitions/relationships

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Transverse waves
oscillations are perpendicular to the direction of travel
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Longitundinal waves
oscillations are parallel to the direction of travel
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Intensity and amplitude
intensity is proportional to amplitude squared
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Node
point on a stationary wave with no displacement/amplitude
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Antinode
point on a stationary wave with maximum displacement/amplitude
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Superposition
two waves interfere to form a resultant wave of combined amplitude
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n x lamda = ...
d x sin(theta)
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Time period
1 / f - time to complete one oscillation
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Intensity and displacement
intensity is proportional to 1/displacement squared
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Progressive waves
transfer energy from one place to another
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Stationary waves
store energy in the same place
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Polarisation
only allowing transverse waves to oscillate in one direction
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Phase
how far apart the waves are from each other
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## Other cards in this set

### Card 2

#### Front

oscillations are parallel to the direction of travel

#### Back

Longitundinal waves

### Card 3

#### Front

intensity is proportional to amplitude squared

### Card 4

#### Front

point on a stationary wave with no displacement/amplitude

### Card 5

#### Front

point on a stationary wave with maximum displacement/amplitude

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