Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
refraction
|
the bending of light
|
|
|
mirage
|
when light passes through the heat on the ground
|
|
|
what causes light to bend
|
when it passes through another object
|
|
|
objects underwater will appear ________ than they really are.
|
further away
|
|
|
why do objects appear to be different location underwater than they actually are?
|
because of refraction. it bends the light
|
|
|
concave lens
|
a lens that is curved inward
|
|
|
convex lens
|
a lens that is curved outward
|
|
|
focal point
|
the point at which the beams converge
|
|
|
focal length
|
the distance from the lens to the focal point
|
|
|
diverging lens
|
concave lenses are sometimes called diverging lenses
|
|
|
what is a lens?
|
specially curved pieces of glass or plastic that are used to bend or refract light
|
|
|
light beams passing through a convex lens will bend towards the ourisde or the center of the lens?
|
outward
|
|
|
what determines the focal length of a lens?
|
determined by the curve and thickness of the lens, as well as by the material the lens is made from
|
|
|
which kind of lens produces a real image and which one produces a virtual image
|
concave creates a virtual image
|
|
|
what are 3 devices that use lenses?
|
microscopes, telescopes, and camera
|
|
|
what does the image produced by concave lens look like
|
it is a virtual image
|
