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15 questions ppt

useing ppt notes making qustions

What is a reflectice wave? A wave that travels through a mirror but is returnedby the mirrors surface.
What is a refracted wave? When a wave strikes the surface of a transparent medium, like water, at an angle, their direction changes.
What is reflection? The bouncing back of a particule or wave tht strikes a bournary between two media.
Sound waves are what? Partially reflected.
What does waves energy do? Some bounces back and some move into the new medium.
The second medium must be what? Less rigid.
Light energy does not what? Propagate into the metal, but instead returned in a refleted wave.
Why is metals like silver and aluminum so shiny? Because they reflect almost all the frequencies of visible light.
The law of reflection states what? The angle of incidence and the angle of reflection are equal to each other.
Whats an incident wave? A light wave that strikes a boundary.
Whats an reflected wave? A light wave that bounces off a boundary.
Whats a normal? A line drawn perpendicular to the poinnt where the incidence ray strikes the barrier.
Whats the angle of incidence? The angle formed between the incidence ray and the normal.
Whats the angle of reflection? The angle formed between the reflected ray and the normal.
Plane mirrors do what? Produce only virtual images
Created by: 535298056