Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
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
|