Waves

  • Created by: SophiaRH
  • Created on: 23-04-18 17:36
What is: a peak
Highest point on a wave
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What is: a trough
Lowest point on a wave
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What is: wavelength
The distance between two matching points on a wave
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What is: amplitude
Maximum distance from peak to rest position
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What is: a transverse wave
Oscillation is perpendicular to the direction of energy transfer
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What is: a compression
Particles are close together
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What is: a rarefaction
Particles are far apart
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What is: a longitudinal wave
Oscillation is parallel to the direction of energy transfer
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Low wavelength =
High frequency and pitch
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What is the electromagnetic spectrum
RMIVUXG
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Uses of radio waves
Wireless communication, TV, wifi, wireless keys, radio, walkie-talkies
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Hazards of radio waves
None
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Uses of microwaves
Mobile phones, satellites, microwaves
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Hazards of microwaves
Burning
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Uses of infrared
Grills, toasters, patio heaters
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Hazards of infrared
Burns, eye damage
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Uses of visible light
Seeing in general
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Hazards of visible light
Eye damage
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Uses of ultraviolet
Dentist, setting nails, teeth cement, sun beds, treating skin conditions, anti forgery
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Hazards of ultra violet
Skin cancer
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Uses of x-rays
Seeing bones, seeing inside rocks, see in gin side suitcases
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Hazards of x-rays
Soft tissue cancer
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Uses of gamma waves
Killing cancer cells, killing bacteria
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Hazards of gamma waves
Causes cancer
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For all electromagnetic waves, what is their speed in a vacuum?
3x10^8
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Electromagnetic waves are all
Transverse
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Anagram for the EMS
Remember My Instructions... Visible Under X-ray Goggles
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What is: a black body
A perfect emitter of radiation
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What is the best emitter
Black matt
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What is the worst emitter
White shiny
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What are carrier waves?
A eve which transfers information as a signal from a transmitter to a receiver
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What wave is used in National and international radio stations
Radio waves with a WL>100m
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What wave is used in Local radio stations
Radio waves with 1m
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What wave is used in Terrestrial TV broadcasting
Radio waves with WL
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What wave is used in Satellite TV links
Microwaves
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What wave is used in Optical fibres
Visible light
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FM
Frequency modulated-change in frequency
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AM
Amplitude modulated-change the height of the wave
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Seismic waves
Generated by an earthquake. Two types of waves released
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P-waves
Primary waves-fastest, longitudinal, vibrate vertically, travel through solids and liquids, not much damage
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S-waves
Secondary waves-slow, transverse, vibrate horizontally, travel through solids only, lots of damage
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Our normal hearing range
20Hz - 20,000Hz
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Other cards in this set

Card 2

Front

Lowest point on a wave

Back

What is: a trough

Card 3

Front

The distance between two matching points on a wave

Back

Preview of the back of card 3

Card 4

Front

Maximum distance from peak to rest position

Back

Preview of the back of card 4

Card 5

Front

Oscillation is perpendicular to the direction of energy transfer

Back

Preview of the back of card 5
View more cards

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SophiaRH

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What we have learned in physics about waves from year 9 - April year 10

SophiaRH

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(excluding equations)

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