1
Materials that do not let light pass through them are
opaque
Which term best describes the form sound takes as it travels away from a drum?
waves
A long and loose string on a violin will create a _______ pitch
low
sound travels the slowest in
gasses
what color is red?
every color but red
A form of energy that can travel through space
light
what uses light energy and can be found in binoculars, cameras, and eyeglasses?
a lens
a short string would create a _____ pitch
high
why doesn't a chunk of wood reflect light
it is rough and not shiny
why does a pencil appear broken in water
refraction
the loudness or softness of a sound is its
volume
If you were observing light shining on a rough piece of granite, which term would you accurately use to describe how it reacts to light?
Opaque
Reflecting
Refracting
Translucent
opaque
If you were observing a computer screen that showed sound waves, which term would you accurately use to identify the number of vibrations that occur during a unit of time?
frequency
what property allows us to see a rainbow?
refraction
how do we measure volume?
decibels
the bending of light as it passes at an angle from one type of matter to another is called
refraction
What causes an echo?
Sound waves that are reflected back from a surface
What is necessary for sound to travel from a radio to your ears?
particles/matter
what color absorbs the most energy from light?
black
what happens when planes go faster than the speed of sound
they create a sonic boom
materials such as wax paper that absorb some light and allow some light to pass through them are
translucent
True or False: Sound waves are different from light waves because they must travel through a medium (matter, material).
true
sound travels the fastest in what?
solids
what color is actually all the colors
black
list all the colors of the rainbow starting with red
ROYGBIV