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Sci Ch 12 Unit Test
Physical Science Chapter 12 Unit Test
| Question | Answer |
|---|---|
| material that allows no light to pass through. | Opaque |
| material that transmits some light and blocks some light. | Translucent |
| material that transmits almost all light. | Transparent |
| indicate how a material slows down the light traveling through it. | Index of Refraction |
| an image of a distant object produced by the refraction of light through air layers of different densities. | Mirage |
| is a colored material that absorbs some colors and reflects others. | Pigment |
| produced by heating a piece of metal until it glows. | Incandescent Light |
| produced without excessive loss of thermal energy. | Fluorescent Light |
| is light of only one wavelength that travels with its crests and troughs aligned. | Coherent Light |
| light that spreads out may contain more than one wavelength. | Incoherent Light |
| light in which the waves vibrate in only one direction. | Polarized Light |
| is a technique that produces a 3d photographic image without a lens. | Holography |
| light striking a surface between two materials reflects totally back into the first material. | Total Internal Reflection |
| The primary pigment colors are____. | Magenta, Cyan, Yellow |
| Two polarizing filters overlapped at right angles______. | Block all light |
| Lasers are used in all of the following except. | Radios |
| Different colors of neon lights are created by adding____to the tub. | Other Gasses |
| All of the following are part of seeing yourself in a mirror except____. | Light form the mirror hit the wall |
| The color____is produced from blending the primary pigment. | black |
| Fluorescent light bulbs____than incandescent light bulbs. | uses less energy |
| If light waves change speed when they pass from one medium to another____. | Refracted |
| All of the following materials would cause diffuse reflection except_____. | Glass |
| A blue shirt looks blue in white light because____is reflected from the shirt. | Blue Light |
| A blue shirt looks____in red light. | Black |
| Incandescent lights have a filament usually made of____. | Tungsten |
| _____are typically filled with argon. | Florescent Bulbs |
| Imagine you are reading a book while sitting next to a window on a bright sunny day and you decide to drink a glass of water as you read as you set your glass down next to your book you see a small line of colors on your page. Infer is happening. | Sunlight is refracting off the cup of water onto the page. |
| ____absorb or reflect all light and cannot be seen through. | Tooth, tree, door. (opaque) |
| ____materials allow nearly all light to pass through them. | Window, glasses, contacts. (transparent) |
| ____materials allow some light to pass through them but do not allow you to see clearly through them. | Skin, paper (translucent) |
Created by:
P.V.A.