Waves Physics A1

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  • Created by: Santosh
  • Created on: 16-04-16 11:15
Progressive Wave
A wave that travels through a space transferring energy
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Wave
An oscillation of particles
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Cycle
One complete vibration of a wave
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Displacement
How far a point on the wave has moved from a undisturbed position
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Amplitude
The maximum displacement of a wave from a undisturbed position
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Wavelength
Distance between wave peaks
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Period
The time taken for a whole cycle to complete
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Frequency
The number of waves per second
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Phase
A measurement of the position of a certain point along the wave cycle
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Phase Difference
The amount of one wave lags behind another
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Reflection
When a wave bounces off a surface
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Refraction
When a wave changes direction and speed as it goes through a different medium
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Longitudinal Wave
Particles that vibrate parallel to the direction that energy travels in
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Transverse Wave
Vibrations that are in right angles to the direction that energy travels in
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Normal
Imaginary line at right angles to the boundary of 2 materials
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Total Internal Reflection
Complete reflection of light at a boundary within a material that has a higher refractive index than it's surroundings
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Critical Angle
When angle of refraction is 90 degrees
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Refractive Index
The ratio of a wave's speed between 2 materials
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Node
A point of minimum amplitude on a stationary wave
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Antinode
A point of maximum amplitude on a stationary wave
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Polarisation
When vibrations of a wave oscillates in one direction only
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Constructive Interference
When 2 waves meet and their displacements are in the same direction, the displacements combine to give a bigger displacement
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Destructive interference
When a positive displacement meets with a negative displacement which cancel out
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Coherent
When waves have the same frequency and wavelength and a fixed phase dfference
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Other cards in this set

Card 2

Front

An oscillation of particles

Back

Wave

Card 3

Front

One complete vibration of a wave

Back

Preview of the back of card 3

Card 4

Front

How far a point on the wave has moved from a undisturbed position

Back

Preview of the back of card 4

Card 5

Front

The maximum displacement of a wave from a undisturbed position

Back

Preview of the back of card 5
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