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kohl chapter 29words
Question | Answer |
---|---|
What determines whether an object is a diffuse or polished reflector? | wavelengths of the waves it reflects |
Reverberations, caused by very reflective walls, can do what to sound? | garble it |
The law of reflection states that the angle of incidence must be equal to what? | The angle of reflection |
What is the line called that is perpendicular to the point where to incident ray strikes the barrier? | Normal |
Which type of mirror is best used for security? | Convex |
A light wave that strikes a boundary. | incident wave |
Name the two angles that occur when light bounces off a mirror and what is the name of the line that is drawn where the first ray strikes the barrier? | Angle of Incidence, Angle of Reflection, and the Normal. |
What is the study of the reflective properties of surfaces? | Acoustics |
Name the three types of mirrors and describe each one. | plane mirrors are flat. then, there is a convex mirror that is curved outwards. Last, there is concave mirror that curves inward. |
When waves interact with matter,what happens? | They can be reflected, transmitted, or a combination of both. Waves that are transmitted can be refracted. |
What is an image? | a likeness or reproduction of an object. |
What is refraction? | the bending of a wave as it crosses the boundary between two media at an angle. |
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 |
Where do divergent rays seem to originate? | From behind the mirror. |
What is an echo? | Reflected sound |