Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/11

Click to flip

11 Cards in this Set

  • Front
  • Back

energy

energy is the capacity to do work

light

light is an energy that can be seen by the human eye

normal

an imaginary line drawn at right angles to the surface of the mirror

reflection

Occurs when light bounces off a surface such as a mirror

refraction

The changing of speed of a light ray when it enters another medium such as water

incident ray

an incoming light ray which hits a surface

concave

the shape of the mirror converges light rays, while this shape of lens diverges light rays

convex

the shape of the mirror diverges light rays, while this shape of lens converges light rays

lens

a curved piece of plastic or glass that focuses light

retina

the part of the eye where light is focused

optic nerve

the part of the eye that transfers visual information from the retina to the vision centers of the brain via electrical impulses