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This study guide covers key concepts related to light and vision, including types of mirrors, optic nerve function, laser properties, and more. It also discusses how light interacts with different materials and its impact on vision. Perfect for students looking to deepen their understanding of these topics.
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Chapter 18 PowerPoint Chapter Review Questions Mrs. Miller 6A light
What do you “think” when you hear the word opaque?
???Answer??? NO WAY!
What do “think” when you hear the word translucent?
???Answer??? SOME!
What do “think” when you hear the word transparent?
???Answer??? ALL!
Name three Kinds of mirrors.
???Answer??? plane convex concave
What carries the signals generated by the rods and cones *TO* your brain?
???Answer??? your optic nerve
Describe the light that a laser produces in ONE word.
???Answer??? coherent
What is the reason that a laser beam can travel through a curled-up optical fiber?
???Answer??? because of total internal reflection
What color would a red tomato appear under a blue light?
???Answer??? The tomato would appear black!
Name 3 things that can occur when light strikes an object.
???Answer??? • The light can be: • reflected • absorbed • transmitted
Clear glass, water, and air are examples of what kind of material?
???Answer??? transparent
What happens when light passes from air into water?
???Answer??? The light Slows down
What happens when white light strikes a black object?
???Answer??? no light is reflected
What is the hole through which light enters the eye?
???Answer??? The pupil
What happens when parallel rays of light hit a smooth surface?
???Answer??? regular reflection
What are the primary colors of LIGHT?
???Answer??? Red Green Blue
Are frosted glass and wax paper: transparent translucent or opaque?
???Answer??? translucent
Describe what is happening if a person is nearsighted.
???Answer??? Nearsightedness • they don’t see well far away • their eyeballs are a little • too long
What do we call long, thin strands of glass or plastic that carry light for long distances without allowing the light to fade.
???Answer??? Optical fibers
What do we call the transparent front surface of the eye?
???Answer??? cornea
What do we call an image of a distant object caused by refraction of light?
???Answer??? mirage
What device uses lenses to focus light rays and record an image of an object on photographic film?
???Answer??? camera
Where are the rods and cones located?
???Answer??? On the retina
What occurs when parallel rays of light hit a rough or bumpy surface?
???Answer??? diffuse reflection
What are substances called that are used to color other materials?
???Answer??? pigments
What instrument is used in holography?