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khols questions 29

QuestionAnswer
What is reflection? the bouncing back of a particle or wave that strikes a boundary between two media
What are examples of convex mirrors? security mirrors; traffic control mirrors
What is the difference between virtual and real images? virtual images are always upright; real images are always inverted.
What is the shape of a concave mirror? curved inward.
What is the virtual image of a convex mirror? a image smaller and farther away to the mirror than the object is.
What happens to light when it is incident on a rough surface? the light is reflected in many directions.
What is the study of the reflective properties of surfaces? acoustics.
What reflects sound energy better: rigid, smooth surfaces or soft, irregular surfaces? rigid and smooth surfaces
What is the angle formed between the incident ray and the normal called? the angle of incidence.
What is the relationship between the angle of incidence and the angle of reflection? the angle of incidence is equal to the angle of reflection
How much energy is reflected when light strikes glass perpendicularly? about 4%
What is an image? a likeness or reproduction of an object.
What kind of mirrors are examples of plane mirrors? bathroom mirrors, dressing room mirrors.
What happens when a wave that is traveling at an angle changes its speed upon crossing a boundary between two media? it bends.
What is refraction? the bending of a wave as it crosses the boundary between two media at an angle.
Created by: aperniciaro
 

 



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