Physics - General properties of waves

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• Created by: becky.65
• Created on: 25-03-16 18:06
What are the two different types of waves?
Transverse and longitudinal waves
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What is the amplitude of a wave?
The height of the wave crest
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What is the frequency of a wave?
The number of wave crests passing a point in one second
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What is the wavelength of a wave?
The distance from one wave crest to the next wave crest
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What is the difference between transverse and longitudinal waves?
Transverse wave - oscillations are perpendicular to the direction of energy transfer Longitudinal - oscillations are parallel to the direction of energy transfer
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What do waves transfer?
Energy and information
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What do waves not transfer?
Matter
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What does a greater amplitude of a wave mean?
That it transfers more energy
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What does refraction of a wave do?
It changes the direction and speed of a wave at the boundary
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What is diffraction of a wave?
The spreading of waves when they pass through a gap or move past an obstacle
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When is diffraction most noticable?
When the hole is the same size as the wavelength of the wave
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What is interference?
The reinforcement or cancellation of waves when two identical sets of waves overlap
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What happens when a crest meets a trough?
The two waves cancel each other out
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When does reinforcement occur?
Whenever the difference in the distances to each slit is a whole number of wavelengths
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When does cancellation occur?
Whenever the difference in the distances to each slit is a whole number of wavelengths + an extra half wavelength
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What happens when a crest meets a crest or a trough meets a trough?
They reinforce each other
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Other cards in this set

Card 2

Front

What is the amplitude of a wave?

Back

The height of the wave crest

Card 3

Front

What is the frequency of a wave?

Card 4

Front

What is the wavelength of a wave?

Card 5

Front

What is the difference between transverse and longitudinal waves?