chapter 17 Flashcards
science
electromagnetic waves
A wave that can travel through empty space or matter and consists of changing electric and magnetic fields.
reflection
When light waves bounce off an object.
radiation
Transfer of energy as electromagnetic waves.
absorption
Transfer of energy carried by light waves to particles matter.
scattering
Interaction of light with matter that causes light to change its energy, direction of motion, or both.
refraction
Bending of a wave passes between two substances in which the speed of the wave differs.
Diffraction
Change in the direction of a wave when the wave finds an edge, such as an opening.
Interference
Combination of two or more waves that results in a single wave.
Transmission
Passing of light or other form of energy through matter.
Transparent
Matter that allows light to pass through with little interference.
Translucent
Matter that transmits light but that does not transmit an image.
Opaque
An object that is not transparent or translucent.
pigment
Substance that gives another substance or a mixture its color.
nearsightedness
Condition in which the lens of the eye focuses distance objects in front of rather than on the retina.
farsightedness
Condition in which the lens of the eye focuses distance objects behind rather than on the retina.
