Unit F Chapter 1 Word Scramble
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| Question | Answer |
| What is the definition of wavelength? | The distance from one crest of the wave to the next crest. |
| This is the unit measurement for frequency. | Hertz (Hz) |
| The number of waves produced each second is the ... | Frequency of a wave |
| True or False. Laser beams spread out their light in all directions and incandescent light bulbs shine light in only one direction. | False; laser beams only direct light in one direction. |
| The __________ is the high point of a wave. | crest |
| The height of the wave from its resting position to its highest or lowest point is called... | the amplitude |
| What is the definition of a vacuum? | A region that is empty of any matter. |
| A wave transfers what? | Energy |
| Who invented the first incandescent light bulb? | Thomas Edison |
| True or False.A lightening bolt is an artificial (man-made) source of light. | False; It's a natural source of light. |
| On the EM Spectrum, which rays have a shorter wavelength: X-rays or Radio Rays? | X-rays |
| Out of all of the visible light colors that we see, which color has the longest wavelength? | Red |
| Complete the sentence: When the wavelength is shorter, the frequency of the wave is (greater/less). | greater; with shorter wavelengths, the waves are seen more often or frequently. |
| If a wave has a high frequency, what does that mean about its energy? (greater/less) | Its energy is greater. |
| A convex mirror curves outward at the middle. It makes an image that is _________ than the actual object. | Smaller |
| A concave mirror curves inward at the middle. The image formed in the mirror looks _________ than the actual object. | Larger |
| True or False: A plane mirror doesn't change the image at all. | False,the image is backwards. |
| What is the definition of refraction? | The bending of light as it passes from one material to another. (Ex: passing from air to water in our pencil experiment.) |
| Why do we sometimes see mirages on summer days? | The sunlight is refracted because the air near the road is warmer than the air high above the road which creates an image of the sky on the road. |
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