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chaper29

Reflection and Refraction

QuestionAnswer
What way to convex mirrors curve? outward
What is a likeness or a reproduction of an object? an image
What happens when sound energy is not reflected? It is absorbed or transmitted
What is the bending of a wave as it crosses the boundary between two media and an angle? refraction
What happens when you shine a beam of light on a mirror? It does not travel through it, it is returned back through the air
What is the bouncing back of a particle or a wave that strikes a boundary line between two media reflection
What is a line perpendicular to a surface? normal
What is an angle between an incident ray and the normal to a surface? angle of incidence
What is the angle between a reflected ray and to normal to a surface? Angle of reflection
What is the reflections of waves in many directions from a rough surface diffuse reflection
What is a persistence of a sound as in an echo due to multiple reflections? reverberations
What image can be seen only at certain angles because it is reflected in an orderly pattern? a smooth mirror
A plane mirror is what shape of mirror? a flat mirror
What type of image is a concave mirror? virtual
what happens to sound waves when parts of a wave front travel at different speeds? they are refracted
Created by: 13_kkalish