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Chapter 29.questions
| Question | Answer |
|---|---|
| What is the bouncing back of a particle or wave that strikes a boundary between two media? | reflection |
| What materials are not as rigid to light waves? | glass and water |
| When light strikes glass perpendicularly, about what percent of its energy is reflected? | 4% |
| What is a light wave that strikes a boundary called? | incident wave |
| 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 does the angle of incidence equal? | angle of reflection |
| What kind of image appears to be in a location where light does not really reach? | virtual |
| What kind of mirrors produce only virtual images? | plane mirrors |
| Security mirrors and traffic control mirrors are examples of what kind of mirror? | convex |
| A make-up mirror is an example of what kind of mirror? | concave |
| What images in mirrors are images that seem to be in or behind the mirror and are always upright? | virtual |
| What kind of images are formed by converging light rays and can be displayed on a screen? | real |
| Diffuse reflection is the reflection of light from what kind of surface? | rough |
| What is reflected sound? | echo |