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31 Cards in this Set
- Front
- Back
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What is a transverse wave?
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a wave where the wave motion is perpendicular to the particle motion ( stadium wave )
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What is a longitudinal wave?
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a wave where the wave motion is parallel to the particle motion ( spring )
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Are sound waves transverse or longitudinal waves?
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longitudinal
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Are electromagnetic waves transverse or longitudinal?
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transverse
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In a longitudinal wave, what is the like the crest and trough?
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compression ( smushed together ) and rarefaction ( spread out )
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What kind of waves are ocean/ water waves?
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surface waves
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Which way do the particles in a surface wave move?
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both parallel and perpendicular
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Where do surface waves occur?
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the boundary between two different mediums ( like water and air )
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What are amplitude and wavelength measurements of?
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distance
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What are period and frequency measurements of?
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time
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What is amplitude?
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the biggest distance that particles are displaced from their normal resting positions ( look at pg. 514 figure 1!!!!!! ) and think about it!!
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What is period represented by?
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T
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What is wavelength represented by?
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lambda
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What is frequency represented by?
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f
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f = ?
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1/T
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v = ?
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lambda/T or f ( lambda )
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Why do sound waves travel faster in liquid and solid than in air?
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the molecules are closer together
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What is reflection?
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the bouncing back of a wave when it hits a boundary
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What is diffraction?
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the changing of direction of a wave when it hits an obstacle
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What is refraction?
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where waves bend when they pass from one medium ( density ) to another
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What are nodes?
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the place in a standing wave with no vibrations
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What are antinodes?
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the place in a standing wave where there is maximum vibrations
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What does the speed of sound depend on?
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vibrations
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What is loudness determined by?
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intensity
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What is pitch determined by?
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frequency
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What is the difference of radar and sonar?
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sonar uses echoes to determine location and radar uses reflected radio waves
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What is the unit for frequency?
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Hz ( T I M E )
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What does the "gulp and burp" occur in?
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electromagnetic waves
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Tell about sound waves.
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mechanical, faster in solids, need medium, faster in hot air, can be reflected, longitudinal, spread out in all directions from source
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What are the three ways light can be modeled?
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photons ( particles ) , waves, and rays
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d ( depth ) = ?
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vt/2 meters
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