Chapter 12 Lesson 1-3 Test Study Guide
Photon
A tiny bundle of energy through which light travels. A particle of light.
Transparent
Allowing all light to pass through (Clear)
What is it called when a sound wave is relfected?
An Echo
A band of colors is produced when...
light goes through a prism is a spectrum.
low notes =
low pitch
What is a substance?
matter that has a uniform and definite composition
gases have
no fixed shape or volume
A stick that is half submerged in water would look like
normal until the part that is in the water would be distorted
opaque
not letting light through
Frequency is
pitch
Waves travel fastest through
solids
solids, liquids, and gases are
states of matter
What kind of surface is good at reflecting sound waves?
surfaces that are hard, thin, and smooth
What kind of surface is good at absorbing sound waves?
surfaces that are soft, thick, and uneven
Convection
the flow of heat through a liquid or a gas, caused by hot parts rising and cooler parts sinking
What is an example of a vacuum in the natural world?
Outer space
Image
A "picture" of the light source that light rays make in bouncing off a polished, shiny surface
What is a vacuum?
A space in which there is no matter.
What does it mean for light to be separated?
As light passes through the prism, it slows and bends, but different wavelengths bend at different angles. This separates light into different wavelengths, forming a rainbow of colors.
Low Heat Capacity means
Change temperature quickly
high heat capacity
Change temperature slowly
The unit measurement of frequency is
Hertz
What is a medium?
It is the material through which a wave travels
Waves Travel at a medium rate through
Liquids
Can sound waves travel through a vacuum?
No it cannot
Heat
The total amount of THERMAL energy an object releases
What is the Doppler effect?
a change in pitch due to wavelength compression and expansion
What is a prism?
a cut piece of clear glass in the shape of a triangle which can separate light
Temperature
a measurement of the AVERAGE energy of the particles in an object
Sound Wave
a series of rarefactions and compressions traveling through a substance
A rainbow is an example of
a spectrum
Translucent
blur light that passes through
Solids have a
fixed shape and volume
Liquids have
fixed volume but not a fixed shape
Waves travel slowest through
gases
High notes =
high pitch
Conduction
the passing of heat through a material while the material itself stays in place
Amplitude is
volume
Do sound waves need a medium to travel through?
yes
High notes have a greater frequency than low notes?
yes
