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Light
Gr. 7 - Light Unit
| Question | Answer |
|---|---|
| What type of object scatters light? | Translucent |
| What type of object transmits light? | Transparent |
| What type of object absorbs light? | Opaque |
| What type of reflection occurs off of a smooth surface? | Regular Reflection |
| What type of reflection occurs off of a rough surface? | Diffuse Reflection |
| What color is produced when primary light colors combine in equal amounts? | White |
| What color is produced when primary pigment colors combine in equal amounts? | Black |
| What type of mirror has a flat surface? | Plane |
| What type of mirror has a curved surface like a bowl? | Concave |
| What part of the front surface of the eye? | Cornea |
| The color of a transparent or translucent object is the ______ color of the light it transmits. | Same |
| What color is created when equal amounts of blue and red light are combined? | Magenta |
| What color is created when equal amounts of red and green light are combined? | Yellow |
| What color is created when equal amounts of blue and green light are combined? | Cyan |
| What color is created when equal amounts of yellow and cyan pigment are combined? | Green |
| Is the image produced by a concave lens always smaller or bigger? | Smaller |
| When you look in a convex mirror, your image will look like it is in front or behind the mirror? | Behind |
| What is the imaginary line that divides a mirror in half? | Optical Axis |
| What is the point at which rays parallel to the optical axis meet? | Focal Point |
| What mirror can form either a virtual or real image depending on where the object is? | Concave Mirror |
| What causes a mirage? | Refraction of light |
| What type of vision does a person have who has difficulty seeing things close up? | Farsighted |
| What type of vision does a person have who has difficulty seeing things at a distance? | Nearsighted |
| What is the measure of how much a ray of light bends when it enters that material? | Index of Refraction |
| What type of lens is thick in the middle and thin at the edges? | Convex |
| What type of lens is thin in the middle and thick at the edges? | Concave |
| What lens always has an upright and smaller image? | Concave |
| What lens forms either a real or virtual image based on the position of the object? | Convex |
| What type of instrument make small nearby objects look bigger? | Microscope |
| What layer of cells lines the inside of the eyeball? | Retina |
| What part of the cell detects light? | Rods |
| What part of the cell detects color? | Cones |
| What part of the eye contracts and expands to allow less or more light to enter the eye? | Iris |
| What is the opening that allows light to enter the eye? | Pupil |
| What nerve do rods and cones use to send signals to the brain? | Optic Nerve |
| What type of instrument uses lenses or mirrors to collect and focus light from distant objects? | Telescope |
| What type of instrument uses one or more lenses to focus light and film to record an image? | Camera |
| What is a device that produces a narrow beam of coherent light? | Laser |
| What type of picture is a three-dimensional photograph created by using the light from a laser? | Hologram |
| What carries a laser beam light for long distances? | Optic Fibers |
| What type of image does a plane mirror produce? | Virtual |
| What type of lens does an eye have? | Convex |
| Why does a laser light have only one color? | Same Wavelength |
| What type of image is created if you have: Focal Point, Object, Concave Mirror? | Virtual Image |
| What type of image is created if you have: Object, Focal Point, Concave Mirror? | Real Image |
Created by:
kpmueller
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