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# Phy Sci Wave Quiz

### Phy Sci Unit 8 Quiz

A wave that vibrates the medium up and down or at right angles to the direction it travels transverse
A wave that vibrates the medium back and forth in the same direction it travels compressional
The top of a transverse wave crest
The bottom of a transverse wave trough
From crest to crest wavelength in a transverse wave
The height of a wave amplitude
From compression to compression wavelength in a compressional wave
The area of a compressional wave where it is pushed close together compression
The area of a compressional wave where it is spread out far apart rarefaction
A repeating disturbance that transfers energy through matter or space wave
The name for the material through which a wave moves medium
Any wave that needs a medium mechanical
This shows how much energy a wave has amplitude (height on a transverse wave)
What waves need no medium? electromagnetic waves like light
This is a measure of how many wavelengths pass a point each second frequency
What is the SI unit for frequency (how is it measured)? Hertz (Hz)
When a wave bounces off something reflection
The bending of a wave as it changes speed going from one medium into and through another refraction
The bending of a wave around something diffraction
A special type of wave pattern formed when waves of equal amplitude and opposite direction continuously interfere with each other. standing wave
When two waves overlap and combine as them move through each other interference
What affects the speed of a wave? medium and temperature
All waves are created by what? vibrations
What do waves carry? energy
What are two ways to calculate the speed of a wave? speed = distance/time or speed = wavelength times frequency
What does a frequency of 45 Hz mean? 45 waves pass a point every second
What affects the speed of a wave through a medium What the medium is and the temperature
What does not affect the speed of a wave through a medium amplitude, frequency, wavelength
What is the speed of a wave with a frequency of 50 Hz and a wavelength of .5 m? 50 x .5 = 25 m/s
Created by: tbrandt