W
AVES
Kinds and Properties
W
hat are W
AVES?






W
ave is propagation of disturbance through a
medium or space by which energy is
transferred.
A...
Kinds of W
aves

-


-

According to the direction of motion
transverse wave
longitudinal waves

According to the presen...
Transverse W
aves


are waves in which particles move in a
direction perpendicular to the direction
of the waves
Longitudinal W
aves


are waves in which particles move in the
direction parallel to the direction of the
waves.
Mechanical W
ave





requires a medium for the transport of energy
medium can be in solid, liquid or gaseous
state
exa...
Electromagnetic W
ave
can transmit energy without material or
medium
 can move in an empty space
 examples: light waves,...
Electromagnetic W
ave
Electromagnetic W
ave
Amplitude




Is the max distance that a wave will travel
away from the rest position
Example, p. 12




In transverse...
Wavelength


The distance between two corresponding
parts of a wave is its wavelength




Transverse waves are measured...
Frequency





Is the number of complete waves that pass a
given point in an amount of time
Frequency can be increased ...
Speed


Speed, wavelength, and frequency are all
related




Speed = Wavelength x Frequency

If you know two of the qua...
Waves
Waves
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Waves

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Waves

  1. 1. W AVES Kinds and Properties
  2. 2. W hat are W AVES?    W ave is propagation of disturbance through a medium or space by which energy is transferred. A single unrepeated disturbance is called wave pulse. A succession of periodic disturbance is called wave train.
  3. 3. Kinds of W aves  -  - According to the direction of motion transverse wave longitudinal waves According to the presence of medium mechanical waves electromagnetic waves
  4. 4. Transverse W aves  are waves in which particles move in a direction perpendicular to the direction of the waves
  5. 5. Longitudinal W aves  are waves in which particles move in the direction parallel to the direction of the waves.
  6. 6. Mechanical W ave    requires a medium for the transport of energy medium can be in solid, liquid or gaseous state examples: sound waves, earthquake/ seismic waves, tidal waves
  7. 7. Electromagnetic W ave can transmit energy without material or medium  can move in an empty space  examples: light waves, radio waves 
  8. 8. Electromagnetic W ave
  9. 9. Electromagnetic W ave
  10. 10. Amplitude   Is the max distance that a wave will travel away from the rest position Example, p. 12   In transverse waves the amplitude is measured by the up and down motion (crest and trough) In longitudinal waves the amplitude is measured by how compressed or rarefied the medium is (more compressions, the stronger the wave)
  11. 11. Wavelength  The distance between two corresponding parts of a wave is its wavelength   Transverse waves are measured from crest to crest or trough to trough Longitudinal are measured by the length of the compressions
  12. 12. Frequency    Is the number of complete waves that pass a given point in an amount of time Frequency can be increased and decreased Frequency is measured in hertz   Hertz are measured by waves per second Example, if a wave passes through a point on a rope 2 times in one second, it would have a frequency of 2 Hz
  13. 13. Speed  Speed, wavelength, and frequency are all related   Speed = Wavelength x Frequency If you know two of the quantities in this formula you can solve for the other (just like Ohm’s law)   Frequency = Speed/Wavelength Wavelength = Speed/Frequency
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