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34 Cards in this Set

  • Front
  • Back
light produced by living organisms
bioluminescence
a straight line beam of light as it travels outward from its source.
light ray
the angle of an incoming light ray equals the angle of the reflected ray
law of reflection
a mirror that curves in on the shiny side
concave mirror
a mirror that curves out on the shiny side
convex mirror
completely blocking light from passing through
opague
letting all light through so that objects on the side can be seen clearly
transparent
letting only some light through so that objects on the other side appear blurry
translucent
allowing light vibrations to pass through in only one direction
polarization
a lens that curves outward and brings light rays together
convex lens
a lens that curves inward and spreads light rays apart
concave lens
a cut piece of glass with 2 opposite sides in the shape of a triangle or other geometric shape
prism
a band of colors produced when light goes through a prism
spectrum
red, green, or blue; mixing these colors can produce all the colors of the spectrum
primary color
magenta, cyan, yellow; material with any of these colors absords one primary color of light and reflects the other two
primary pigment
the production of magnetism by electricity and the production of electricity by magnets
electromagnetism
all the wavelengths of visible and invisible in order from short to long
electromagnetic spectrum
a device that produces a thin stream of light of just a few close wavelengths
laser
one of a series of pitches that blend to give a sound its quality
overtone
the change in frequency and pitch as a source of sound moves toward or away from you
doppler effect
the finding of an object by using reflected sound
echolocation
a reflected sound wave
echo
the disappearance of a sound wave into a surface
absorption
the bouncing of a sound wave off a surface
reflection
the part of a sound wave where molecules are spread apart
rarefaction
how high or low a sound is
pitch
the number of times an object vibrates per second
frequency
a unit for measuring loundness
decibel
a back and forth movement
vibration
anything that has mass and takes up space
matter
a vibration that spreads away from a vibrating object
sound wave
the part of a sound wave where molecules are crowded together
compression
the difference you hear between two sounds of the same loudness and pitch
quality
the bending of light rays as they pass from one substance into another
refraction