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PS 07 Light Waves

8th Grade 2022

QuestionAnswer
The width of a wave, measured from crest to crest or trough to trough. Wavelength
Electromagnetic waves do not have to travel through a ___ like sound waves do. Medium
Unlike sound waves, electromagnetic waves can travel through ___. Empty space (vacuum)
As the wavelength of a wave increases, the frequency ___. Decreases
Compared to EMR , sound waves travel much _________ slower
Electromagnetic waves move fastest through a ___ medium and slowest through a ___ medium. Gas (fastest), Solid (slowest)
Order the 7 forms of electromagnetic waves from the lowest amount of energy to the highest amount of energy. Radio waves, Microwaves, Infra-red, Visible Light, Ultra-violet, X-ray, Gamma Rays
The greater a wave's ______, the more energy it has. Frequency
The ability for light energy to be taken in by materials. Absorption
What is the name for a mirror whose reflective side is on the inside of a "C"-shape? Concave Mirror
What is the name for a mirror whose reflective side is on the outside of a "C"-shape? Convex Mirror
Concave mirrors can cause light to _____, or bring light together at a focal point. Converge
Convex mirrors can cause light to _____, or spread light out. Diverge
What is the name of a lens whose shape is thickest on top and bottom and thinnest in the middle? Concave lens
The ability for light to bounce off a surface. Reflection
The color of an object is determined by the colors of light that are ___. Reflected to your eye
The angle at which light hits a surface is the same angle it bounces off is called the _____ Law of Reflection
The bending of light as it moves from one medium to another. This is caused by a change in the light's speed. Refraction
The bending of light around the edges of an object. Diffraction
What is the name of a lens whose shape is thinnest on top and bottom and thickest in the middle? Convex lens
The highest point of a transverse wave. Crest
The lowest point of a transverse wave. Trough
The height of a transverse wave. (measured to the crest or trough from the rest position) Amplitude
Created by: Mr. Dornfeld
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