light
A form of radiant energy that we can see that travels in a straight line until it interacts with an object or moves from one medium to another
waves
how light travels
transmission
light passing through objects
medium
Any substance through which light travels.
reflection
the light energy that bounces off objects
refraction
The bending of a light wave as it moves from one medium to another
absorbed
Light that is taken in and trapped by matter
translucent
Allowing light to pass through, some light pass through, but can't see through clearly; scatters light
opaque
impossible to see through; preventing the passage of light
transparent
Allows light rays to pass through without scattering
Which travels faster- Light or Sound?
Light travels faster than sound
white light
Mixture of all the colors in the visible spectrum
Prism
A piece of glass that separates (bends) white light into colors of the spectrum.
shadow
A dark area caused when an object blocks light falling on a surface
Light travels
in straight lines called rays
Light will travel and maintain its direction until it__________
interacts with an object or moves from one medium to another that can reflect, refract or absorb the light energy.
What does a magnifying lens do to light?
It bends light and focuses it toward a single point.
Black
absorb all the colors in light.
White
reflect ALL colors in light.
An object appears red
the color red is reflected and all other colors are absorbed.
Mirrors
These reflect light and light will bounce off of them.
Emit light
to produce or give off light
Moon
Reflects light. It is not a source of it's own light.
lens
An object made to refract light in a specific way.
convex lens
Light is refracted into a single point.
concave lens
Light is refracted to spread apart.
Sources of light
Sun, fire, light bulbs