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Chapter 1 Energy

Energy of Waves

Any disturbance that transmits energy through matter or empty space. wave
A substance through which a wave can travel. medium
Waves that need a medium. mechanical
Visible light, radio and tv signals, microwaves, and X-rays. electromagnetic
These waves transfer energy without a medium. electromagnetic
This wave is a combination of a transverse wave and a longitudinal wave. surface wave
Particles move up and down in this type of wave. transverse
Highest point of a transverse wave. crest
lowest point between each crest. trough
Particles move back and forth along a path in this type of wave. longitudinal
Area of crowded particles in a longitudinal wave. compression.
Area where the particles are spread apart in a longitudinal wave. rarefraction
Waves transfer this. energy
The maximum distance that the particles of a medium vibrate from their rest position. amplitude
The distance from any point on a wave to an identical point on the next wave. wavelength
The number of waves produced in a given amount of time. frequency
The speed at which a wave travels. wave speed
As frequency increases, the amount of this also increases. energy
The bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does no go through. reflection
A reflected sound wave. echo
The bending of a wave as the wave passes from one medium to another at an angle. refraction
The bending of waves around a barrier or through an opening. diffraction
The combination of two or more waves that result in a single wave. interference
Interference that happens when the crests of one wave overlap the crests of another wave. constructive
Interference that happens when the crests of one wave and the troughs of another wave overlap. destructive
A pattern of vibration that simulates a wave that is not moving. standing wave
Whan a vibrating object causes a second object to vibrate. resonance
Created by: halerz