15 Questions Word Scramble
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| Question | Answer |
| What happens when waves fall on a transparent medium? | The waves are partly reflected and partly refracted. |
| What happens when a wave reaches the boundary between two media? | Usually some or all of the wave bounces back into the first medium. |
| Why are metals such as silver and aluminim so shiny? | Light energy does not propagate into the metal, but instead is returned in a reflected wave. Metal surfaces are rigid to light waves. |
| What does the law of reflection state? | That the angle of incidence and the angle of reflection are equal to each other. |
| What is the normal and how is it drawn? | A line perpendicular to the point where the incident ray strikes the barrier, and it is drawn as a dashed line. |
| What kind of mirrors produce virtual light? | Plane mirrors. |
| What is a convex and concave mirror? | A mirror that curves outward, and a mirror that curves inward. |
| True or False: Mirrors can be grouped according to their shape. If true, what groups are there? | True, plane mirrors, convex mirrors, and concave mirrors. |
| What is an image? | A likeness or reproduction of an object. |
| How are real images formed? | By converging light rays and can be displayed on a screen. These images are always inverted. |
| What are virtual images? | Images that seem to be in or behind the mirror. These images are always upright. |
| What happens when light is incident on a rough surface? | The light is reflected in many directions. |
| What happens to sound energy that is not reflected? | It is absorbed or transmitted. |
| What is acoustics? | The study of the reflective properties of surfaces. |
| What is an echo? | Reflected sound. |
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13_EPrice
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