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Beaver Local 15

QuestionAnswer
A disturbance that carries energy through matter and space Wave
T or F: Most waves travel through a medium True
Earthquakes are disturbances that travel in seismic waves, waves that travel through _______________ Earth
A physical environment in which phenomena ocur Medium
A wave that requires a medium through which to travel Mechanical Wave
A wave that consists of osccillating electric and magnetic fields, which radiate outward at the speed of light Electromagnetic waves
What type of waves DO NOT require a medium? Electromagnetic waves
T or F: Radio waves, such as those that carry signals to your radio or television, are electromagnetic waves True
Energy is the ability to exert a force over a certain distance called ______________ Work
T or F: The waves created when you drop a stone into a pond all carry DIFFERENT amounts of energy F: the circles carry a wave front and have the same amount of energy
When sound waves travel in air, the waves spread out in _____________ Spheres
Waves are related to _________________ Vibrations
The type of wave in which the wave motion is perpendicular to the particle motion Transverse Wave
The medium moves at a right angle to the direction the wave is traveling Transverse Wave
high points of a transverse wave Crests
low points of a transverse wave Troughs
waves height above or below its zero point in a transvese wave Amplitude
T or F: The greater the height (amplitude) the less energy the wave carries F: The greater the height the more energy the wave carries
how many crest/troughs pass a point in a second in a transverse wave frequency
measured in Hertz Hz frequency
distance from crest to crest or trough to trough Wavelength
A wave in shich the particles of the medium vibrate parellel to the direction of the wave Longitudinal Wave
An example of a longitudinal wave is _________ waves Sound
Crowded areas in a longitudinal waves are called __________________ Compressions
The stretched out areas in a longitudinal waves are called ____________ rarefactions
c. Wavelength in a compression wave is measured from the compression to the next compression or rarefaction to the next _______________ rarefaction
In a longitudinal wave, the more compressed the waves the ___________ the density Higher
The type of wave where the waves move both perpendicular and parallel to the direction in which the wave travels Surface Wave
Two factors that influence the speed at which wave moves are: Medium density and temperature
the more dense the material the ____________ the sound wave moves Faster
the warmer the temperature the more ________ energy air molecules have kinetic
In sound waves the more frequent the wave lengths the higher the _________ the note is pitch
Humans can hear in a range of ___ Hz to ______Hz 20; 20,000
___________________ and _________________ are measurements of distance Amplitude and wavelength
Speed = frequency X wavelength wave speed equation
Do waves travel faster in water or air? Water
The full range of light at different frequencies and wavelengths is called the ____________________ ______________ electromagnetic spectrum
Motion between the source of waves and the observer creates a change in observed _____________________ frequency
a high- _________ sound is caused by sound waves of high frequency high
An observed change in the frequency of a wavve when the source or observer is moving Doppler Effect
The bouncing back of the wave when it meets a surface or boundary Reflection
The bending of waves as the waves pass an edge of an object is called _______________ diffraction
The bending of a wave front as the wave passes between two substances in which the speed of the wave differs refractions
The combination of two or more waves that results in a single wave interference
Created by: kjones0722
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