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Waves

wave go boing

QuestionAnswer
What is a wave? A disturbance caused by the mechanical motion of some particle of matter.
What is a medium? Any matter that is used to transport the energy of the waves. Can be solid, liquid or gas.
A mechanical wave is... A type of wave caused by the movement of physical matter
What happens when a wave propagates through physical matter? It moves through the matter's particles. "Propagate" is the same as "Travel".
What kind of wave is a sound wave? A Mechanical Wave
Do electromagnetic waves require a medium? No
Where can electromagnetic waves go that mechanical waves cannot? Inside a Vacuum
What is a vacuum? A completely empty space, not even taken up by gas.
What is Wavelength? The distance between any two identical points on a wave.
What is Amplitude? Maximum displacement of a wave particle from the midpoint between the crest and trough.
What is the crest of a wave? The highest point of the wave.
What is the trough of a wave? The lowest point of the wave.
What is the period of a wave? The time required for a wave particle to complete one full cycle of its motion.
What are waves measured in? Hertz (Hz)
What is frequency? The amount of wave crests that occur in a unit of time.
What is the velocity formula? Velocity = Frequency*Wavelength
What is the symbol for wavelength? Lambda (λ)
Reflection is.... when waves bounce off of a surface
What is an example of reflection? Looking into the mirror. Waves bounce from the mirror into your eyes.
If a wave is only partially reflected, the leftover energy is.... Absorbed
When waves travel through matter, they are being... Transmitted
Reflection waves bounce off the surface at the same angle it hit it
Transmission travels through the material at the same angle it entered
Refraction travels through the material, but now at a different angle
Diffraction travels through the material until an obstacle is encountered. The proceeds to BEND around the object and pass.
Absorption does not travel all the way through the material.
Interference Wave come from 2 sources and meet. They then affect each other in different ways.
Law of Reflection States that the angle of reflection equals the angle of incidence
Angle of Incidence Angle of which light hits the surface
Angle of Reflection Angle that the light bounces off the surface
Refraction does what based on the density of the medium? It bends the wave
What is Snells Law? n1sinθ1=n2sinθ2
What is Visible Light Light that humans can see with the naked eye
Created by: BurgerKing_07
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