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chapter 19
chapter 19
19
Physics
9th Grade
02/04/2013

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Term
the common source of wave motion is....?
Definition
a vibrating object.
Term
in a longitudinal wave the compressions and refractions travel in.....
Definition
the same direction
Term
the vibrations of a transverse wave move in a direction...
Definition
at right angles to the direction of wave travel
Term
if the frequency of a certain wave is 10 hertz, its period is...
Definition
0.1 second
Term
an object that completes 10 vibrations in 20 seconds has a frequency of...
Definition
0.5 hertz
Term
wave interference occurs for...
Definition
light waves, sounds waves, and water waves
Term
a standing wave occurs when...
Definition
a wave reflects upon itself
Term
the Doppler effect is characteristics of...
Definition
sound, light, and water waves.
Term
a doppler effect occurs when a source of sound moves...
Definition
either towards you or away from you
Term
an aircraft that flies faster that the speed of sound is said to be...
Definition
supersonic
Term
the pendulum with the greatest frequency is the pendulum with the...
Definition
shortest period
Term
a floating leaf oscillates up and down two complete cycles in one second as a water wave passes by. the waves wavelength is 10 meters. what is the waves speed?
Definition
20 m/s
Term
for light, a red shift indicates that the light source is moving...
Definition
away from you.
Term
the amplitude of a particular wave is 1 meter. the top-to-bottom distance of the disturbance is...
Definition
2 meters
Term
if you double the frequency of a vibrating object, its period...
Definition
havles
Term
a sound source of high frequency emits a high....
Definition
pitch
Term
a sound wave is a...
Definition
longitudinal wave
Term
compression's and rarefaction are characteristics of...
Definition
longitudinal waves
Term
sound waves cannot travel in..
Definition
a vacuum
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