Refraction Flashcards
Light travels through different ____ at different ____.
Light travels through different MATERIALS** at different **SPEEDS.
Light travels through ____ almost as quickly as through ____ and ____.
Light travels through AIR** almost as quickly as through **SOLIDS** and **LIQUIDS.
Light often ____ when it passes from one material to another. This is because there is a change in the ____ at which the light can travel.
Light often BENDS** when it passes from one material to another. This is because there is a change in the **SPEED at which the light can travel.
____ is the bending or change in the ANGLE of light rays passing from one medium to another.
REFRACTION is the bending or change in the ANGLE of light rays passing from one medium to another.
Refraction can be seen most clearly when light passes from ____ to ___.
For example, if you put a pencil in a cup of water, it looks like it is in two pieces.
Refraction can be seen most clearly when light passes from AIR** to **WATER.
For example, if you put a pencil in a cup of water, it looks like it is in two pieces.
It is ____ for light to bend around an object. The light simply changes ____ at an angle as it passes from one material to another.
It is IMPOSSIBLE** for light to bend around an object. The light simply changes **DIRECTION at an angle as it passes from one material to another.
Lenses ____ light
Lenses REFRACT light
A convex lens BENDS rays ____ making objects look ____.
A convex lens BENDS rays CLOSER** making objects look **LARGER.
A concave lens SPREADS rays ____ ____, making objects look ____.
A concave lens SPREADS rays FARTHER** **APART**, making objects look **SMALLER.
