Light Energy 빛에너지 영영풀이

[Light Energy 빛에너지 영영풀이]

 

light

noun : a thing that gives off the energy that makes seeing possible

sight

noun : the sense that allows some living things to see

 

eclipse

noun : the partial or complete hiding or darkening of one celestial body, such as the Sun or Moon, by another

frequency

noun : the number of waves that pass a point in a specific length of time

iris

noun : the colored, ring-shaped part of the eye that surrounds the pupil

laser

noun : intense, focused light of similar wavelengths

light

noun : a form of radiant energy that allows us to see things

light-year

noun : a unit of distance in astronomy equal to the distance that light travels in one year

medium

noun : a substance through which something is carried or transmitted

photon

noun : the smallest unit of light energy

pigment

noun : a substance that gives color to something

pupil

noun : a dark opening in the center of the eye through which light enters

radiant

adjective : moving out in all directions; shining brightly

reflection

noun : an image made by light bouncing off a surface, such as a mirror

refraction

noun : the bending of a wave when it passes through certain kinds of matter

retina

noun : a layer of light-sensitive cells at the back of the eye

spectrum

noun : a band of colors made by separating light into its different wavelengths; a range

sunburn

noun : damage to skin cells caused by UV radiation in sunlight

translucent

adjective : not clear, but allowing some light to pass through

transparent

adjective : allowing all light through so that images are not distorted

visible

adjective : able to be seen

wavelength

noun : the distance between two consecutive peaks or troughs of a wave

 

compound eyes

noun : eyes made up of many lenses, found in most insects and some crustaceans

concave lens

noun : a piece of glass or other transparent material that is thinner in the middle than it is at the edges and that refracts light rays so they bend outward

convex lens

noun : a piece of glass or other transparent material that is thicker in the middle than at the edges and that refracts light rays so they come together

electromagnetic radiation

noun : energy in the form of electromagnetic waves

filament

noun : the threadlike part of a lightbulb that glows

fluorescent

adjective : having the ability to give off light when electricity passes through a gas

fluorescent bulb

noun : a lightbulb in which electricity passes through a gas that reacts with the white coating inside the bulb to produce light

incandescent bulb

noun : a lightbulb in which electricity passes through a wire, which heats up and produces light

opaque

adjective : blocking light from passing through; not see-through

peripheral vision

noun : the ability to see to the sides without turning one's head

polarized

adjective : a characteristic of some sunglasses that lets them block sunlight entering from certain directions

ultraviolet radiation

noun : the invisible spectrum of light that extends from the violet end of visible light to the x-ray region

white light

noun : light that seems colorless but contains all the colors of the spectrum