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# waves

### Unit 3

What is a disturbance that transfers energy through a medium.? WAVE
Name the material through which a wave travels. MEDIUM
What kind of wave does the particles move BACK AND FORTH in the same direction as the wave, or PARALLEL to the wave. LONGITUDINAL WAVE
What kind of wave does the particles move UP and DOWN in the same direction as the wave, or PERPENDICULAR to the wave. TRANSVERSE WAVE
A type of wave that requires a medium to travel through. MECHANICAL WAVE
What is a measure of how far the particles in the medium move away from their normal rest position. (Displacement) AMPLITUDE
What is the distance from any point on a wave to an identical point on the next wave? WAVELENGTH
Name the highest part of a wave. (Transverse) CREST
Name the lowest part of a wave? (Transverse) TROUGH
What do we call the time required for one cycle of a wave to pass? WAVE PERIOD OR PERIOD
the ___________________________ of a wave tells how many cycles occur in an amount of time. FREQUENCY
What is the unit for frequency? HERTZ
What two things affect the energy of a wave? AMPLITUDE AND FREQUENCY
For mechanical wave, ______________ is most related to energy AMPLITUDE
For Electromagnetic waves, ______________is most related to energy. FREQUENCY
What do you call the speed at which a wave travels? Wave Speed
What medium (type of matter) do waves travel the fastest through? SOLIDS
A disturbance in electric and magnetic fields. ELECTROMAGNETIC WAVES
Why does wave energy decrease over time? Energy is spread over a greater area.
Waves travel the fastest trough solid, liquid or gas? SOLID
What type of waves move at the speed of light in a vacuum? ELECTROMAGNETIC WAVES
A part of longitudinal wave where the particles are far apart. RAREFACTION
A part of longitudinal wave where the particles are close together. COMPRESSION
Electromagnetic waves are ________________ because of the up and down motion of their particles. TRANSVERSE
Sound waves are ______________________ waves because they require a medium. MECHANICAL
When amplitude increase the energy of the wave_________________. INCREASES OR DECREASES INCREASES
If the frequency of a wave increase, what happens to the wavelength? wavelength shortens.
in a vacuum all E M waves travel at the same speed. True or False TRUE
Created by: KHurst24
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