Physics: P1.5 - Waves

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  • Created by: shcoool
  • Created on: 25-05-15 18:53
What do waves do?
they transfer energy
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What types of wave exist?
transverse - energy travels at a right angle to the direction of the wave, longitudinal - the energy travels in the same direction of the wave
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What type are electromagnetic, sound and mechanical?
longitudinal - transverse, sound - longitudinal, mechanical - either
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Describe electromagnetic waves
The travel at the same speed in a vacuum and form a continuous spectrum
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What do longitudinal waves show?
rarefaction and compression (areas of)
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What can be done to waves?
reflection, refraction and diffraction; a change in direction when they are refracted at an interface
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What is frequency, wavelength and amplitude?
frequency - number of waves per second, wavelength - distance from one crest to the next, amplitude - the distance from one cres
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What equation do all waves obey?
v = f*lamda
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What waves can be used for communication?
radio waves, microwaves, infrared and visible light
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What is the normal?
A construction line perpendicular to the reflecting surface at the point of incidence
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The angle of incidence...
... is equal to the angle of reflection
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How is the image in the plane mirror produced?
virtual, upright and laterally inverted
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What are sound waves?
They are longitudinal waves that cause vibrations in a medium which are dtected as sound
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How is th epitch and loudness determined?
By its frequency an damplitude
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What are echoes?
reflections of sound
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Other cards in this set

Card 2

Front

What types of wave exist?

Back

transverse - energy travels at a right angle to the direction of the wave, longitudinal - the energy travels in the same direction of the wave

Card 3

Front

What type are electromagnetic, sound and mechanical?

Back

Preview of the front of card 3

Card 4

Front

Describe electromagnetic waves

Back

Preview of the front of card 4

Card 5

Front

What do longitudinal waves show?

Back

Preview of the front of card 5
View more cards

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