khols questions 29 Word Scramble
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| Question | Answer |
| 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. |
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