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Chapter 29 Notes
Question | Answer |
---|---|
What is an incident ray? | A light wave that strikes a boundary. |
What is a reflected ray? | A light wave that bounces off a boundary. |
What is a line drawn perpendicualar to the point where the incident ray strikes the barrier? | Normal. |
What does the angle of incidence equal? | The angle of reflection. |
What is the angle formed between the incident ray and the normal? | Angle of incidence. |
What is the angle formed between the reflected ray and the normal? | Angle of reflection. |
What kind of images do plane mirrors produce? | Virtual images. |
What is an image? | A likeness or a reproduction of an object. |
What kind of images appear to be in a location where light does not reach? | Virtual images. |
How are real images formed? | By converging light rays. |
Which way do convex mirrors curve? | Outward. |
Which way do concave mirrors curve? | Inward. |
Which mirrors are flat? | Plane mirrors. |
Real images are always inverted or upright? | Inverted. |
Virtual images are always inverted or upright? | Upright. |
What is the size of an image in a plane mirror? | Same size. |
What is the size of an image in a convex mirror? | Smaller. |
What is the size of an image in a close up concave mirror? | Larger. |
What is the size of an image in a far awat concave mirror? | Smaller. |
Is the distance of an object in a convex mirror closer or farther than it appears? | Farther. |
What is deffuse reflection? | The reflection of light from a rough surface. |
What is an echo? | Reflected sound. |
What is the study of the reflective properties of surfaces? | Acoustics. |