p5

frequency
The number of oscillations per second
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Amplitude
Maximum distance from the equilibrium position.
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Wavelength
The distance between neighbouring peaks or troughs
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Transverse
The particles oscillate at right angles to the direction that wave travels
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Longitudional
The vibrations happen along the direction of the wave - The particles oscillate parralel to the direction that the wave travels.
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Time period T
The time taken for one complete wave is known as the time period
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Rarefraction
where the particles are spaced out (low pressure)
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compression
Where the particles are compact and close together (high pressure)
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sound waves are collected by
the outer ear
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the vibrating air particles transfer their... to the ear drum
energy
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small bones called ... pass the vibration through to the ....
ossicle, oval window
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The opening of the cochlea contains
liquid
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range of human hearing is
20Hz to 20000Hz
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What are the three bones in the ear
hammer, anvil, stirrup
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two lenses
convex, concave
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starting from longest to shortest wavelength
radio, micro, infrared, visible, ultraviolet, x-rays, gamma
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what are p waves
primary waves in an earthquake, longitudinal, 10km/s
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what are s waves
secondary waves in an earthquake, transverse, 6km/s
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what can p waves travel through
solids, liquids, can be refracted
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what can s waves travel through
only solids
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formula for calculating wave speed
frequency X wavelength
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reflection
angle of incidence = angle of reflection
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refraction
the wave bends
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short sighted people use
concave lenses
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long sighted use
convex lenses
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A real image is
where the light from an object comes together to form an image on a 'screen'
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A virtual image is
when the rays are diverging, so the light from the object appears to be coming from a completely different place.
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WHat does a concave lens always produce
a virtual image. The image is the right way up, smaller than the object and on the same side of the lens as the object.
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Other cards in this set

Card 2

Front

Maximum distance from the equilibrium position.

Back

Amplitude

Card 3

Front

The distance between neighbouring peaks or troughs

Back

Preview of the back of card 3

Card 4

Front

The particles oscillate at right angles to the direction that wave travels

Back

Preview of the back of card 4

Card 5

Front

The vibrations happen along the direction of the wave - The particles oscillate parralel to the direction that the wave travels.

Back

Preview of the back of card 5
View more cards

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