Types of waves

jn05 13,611 views 15 slides Jul 17, 2015
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About This Presentation

types and characteristics of waves


Slide Content

Types of Waves Mechanical Waves requires a material medium such as water, air, or rope In all types of mechanical waves, energy moves from one place to another while the media carrying the wave only vibrates back and forth in position.

Types of Mechanical Waves

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Transverse Wave A type of mechanical wave The movement of the medium is perpendicular to the direction of the energy movement

Characteristics of Waves

UNDISTURBED POSITION: The equilibrium or rest position of the medium in a wave.

Characteristics of Waves 1. Crest —The displacement of the medium above the undisturbed position 2. Trough —The displacement of the medium below the undisturbed position

3 .Amplitude —The maximums of the crest and trough are equal 4. Wavelength —The distance between equivalent positions on succeeding waves The wavelength could be measured from a crest to the next crest or from a trough to the next trough, and is commonly represented with the Greek letter lambda, λ.

5. Period —The time interval required for one complete wave to pass a point 6. Frequency —The number of waves that pass a single position in one second The period of a wave and its frequency are reciprocals of each other

7. Velocity —t he wave velocity is the velocity of the linearly transferred energy

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are mechanical waves, which means they transfer energy through a medium. Longitudinal Waves Unlike transverse waves, longitudinal waves cause the particles of medium to move parallel to the direction of the wave.

They are most common in springs, where they are caused by the pushing an pulling of the spring. Although the surface waves on water are transverse waves, fluids (liquids, gases, and plasmas) usually transmit longitudinal waves. Longitudinal Waves

Longitudinal Waves are a series of compressions and rarefactions , or expansions. The wavelength of longitudinal waves is measured by the distance separating the densest compressions. The amplitude of longitudinal waves is the difference in media density between the undisturbed density to the highest density in a compression.

Longitudinal Waves are a series of compressions and rarefactions , or expansions. The wavelength of longitudinal waves is measured by the distance separating the densest compressions. The amplitude of longitudinal waves is the difference in media density between the undisturbed density to the highest density in a compression.
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