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wave motion

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Seema Nair

This document discusses different types of waves. It defines a wave as a vibratory disturbance that transfers energy through a medium or space. There are two main types of waves: transverse waves, which move the medium perpendicular to the direction of travel, and longitudinal waves, where vibrations are parallel to the direction of travel. The properties that characterize waves include amplitude, wavelength, frequency, and speed. The relationship between these properties is described by the equations relating speed, wavelength, and frequency.

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wave motion
A wave is a vibratory disturbance through a material (medium) or space. Waves transfer energy without transferring mass.
No medium required. Travel at the speed of light . c = 3 x 108 m/s Examples: visible light, x-rays, infrared rays
MECHANICHAL WAVES Require a medium ex. Sound, water, waves in springs. Longitudinal waves Examples - sound, seismic s-waves Transverse waves Examples: light, seismic p-waves, water
TRANSVERSE WAVES Waves that move the medium at right angles to the direction in which the waves are traveling .
CREST AND TROUGH Crest: A point on the wave where the displacement of the medium is at maximum. Trough: A point on the wave where the displacement of the medium is minimum.
LONGITUDINAL WAVES Longitudinal waves have vibrations moving in the same direction that the wave is travelling in.
COMPRESSSION AND RAREFRACTION Compression: A region in a longitudinal waves where the particles are closest together. Rarefraction: A region in a longitudinal wave where particles are farthest apart.
PROPERTIES OF WAVES Amplitude Frequency Speed wavelength
AMPLITUDE Maximum distance the particles of the medium carrying the wave move away from their rest positions. Amplitude of a transverse wave is the maximum distance the medium moves up or down from its rest position. Amplitude of a longitudinal wave is a measure of how compressed or rarefied the medium becomes.
WAVELENGTH A wave travels a certain distance before it starts to repeat. The distance between two corresponding parts of a wave is its wavelength. Transverse measure from crest to crest or trough to trough. Longitudinal measure from one compression to the next.
wave motion
The number of complete waves that pass a given point in a certain amount of time. Frequency measured in hertz
SPEED, WAVE LENGTH & FREQUENCY The speed, wavelength, and frequency of a wave are related to each other by a mathematical formula. Speed = wavelength x frequency Frequency = speed/wavelength Wavelength = speed/frequency
wave motion

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wave motion

  • 2. A wave is a vibratory disturbance through a material (medium) or space. Waves transfer energy without transferring mass.
  • 3. No medium required. Travel at the speed of light . c = 3 x 108 m/s Examples: visible light, x-rays, infrared rays
  • 4. MECHANICHAL WAVES Require a medium ex. Sound, water, waves in springs. Longitudinal waves Examples - sound, seismic s-waves Transverse waves Examples: light, seismic p-waves, water
  • 5. TRANSVERSE WAVES Waves that move the medium at right angles to the direction in which the waves are traveling .
  • 6. CREST AND TROUGH Crest: A point on the wave where the displacement of the medium is at maximum. Trough: A point on the wave where the displacement of the medium is minimum.
  • 7. LONGITUDINAL WAVES Longitudinal waves have vibrations moving in the same direction that the wave is travelling in.
  • 8. COMPRESSSION AND RAREFRACTION Compression: A region in a longitudinal waves where the particles are closest together. Rarefraction: A region in a longitudinal wave where particles are farthest apart.
  • 9. PROPERTIES OF WAVES Amplitude Frequency Speed wavelength
  • 10. AMPLITUDE Maximum distance the particles of the medium carrying the wave move away from their rest positions. Amplitude of a transverse wave is the maximum distance the medium moves up or down from its rest position. Amplitude of a longitudinal wave is a measure of how compressed or rarefied the medium becomes.
  • 11. WAVELENGTH A wave travels a certain distance before it starts to repeat. The distance between two corresponding parts of a wave is its wavelength. Transverse measure from crest to crest or trough to trough. Longitudinal measure from one compression to the next.
  • 13. The number of complete waves that pass a given point in a certain amount of time. Frequency measured in hertz
  • 14. SPEED, WAVE LENGTH & FREQUENCY The speed, wavelength, and frequency of a wave are related to each other by a mathematical formula. Speed = wavelength x frequency Frequency = speed/wavelength Wavelength = speed/frequency