Light Properties
Sound is a form of what?
energy
Dark colors absorb more or less radiant energy than light colors?
more
What visibly vibrated when the rubber band was plucked?
the rubber band
What does "absorb" mean?
to take in/soak up
What property of light causes it to bend when passing through water or glass?
Refraction
Sound waves need this to travel through
a medium (matter/air/water/solid)
It gets trapped
the sand danced/moved/vibrated
What does "reflect" mean?
to send back
What property of light bends light to help form a rainbow?
refraction
If a tree falls in the woods and no one is there to hear it, does it still make a sound?
yes
radiant/light energy
Light waves move mostly in what pattern: push-pull or up-down?
Up-down (transverse)
What is a variable in an experiment?
The one thing that changes
What happens to white light to create a rainbow?
it separates into different colors
What type of wave is a sound wave
longitudinal wave
Which would heat faster in sunlight: a black can or a white can?
a black can
Sound waves move in what kind of motion?
push-pull/compression waves
What does "persistent" mean in persistence of vision?
continuing/lasting
Name 3 properties of light demonstrated in this chapter
reflection, refraction, transmission, absorption, scattering, traveling in straight lines
What happens to pitch when a sound source moves towards you?
the pitch sounds higher
Why might someone choose light-colored roofing materials in a hot climate?
light colors reflect more light and absorb less heat
What is the name of the effect that changes pitch when objects move quickly past you?
the doppler effect
Explain one way light and sound are similar AND one way they are different.
Similar: both are forms of energy and travel in waves
Different: light can travel through space, but sound needs a medium