Sound
What is wave speed?
How quickly a wave travels.
What are the colors in the EM Spectrum?
Red, orange, yellow, green, blue, indigo, and violet.
How is light made?
Light is made when the electrons in an atom absorb energy and then release that energy.
What is Red Shift?
Redshift is when shifted towards the red side of the EM Spectrum and moves away earth.
About when did the universe start?
13.8 billion years ago
What are the parts of a wave?
3. Amplitude 4. Wavelength
How does a wave with a long wavelength look like? (Write or draw a description)
Long spaced out waves.
What is Ground State?
When an electron is at its normal energy level.
What is Blue Shift?
Blue Shift is when its shifted towards the blue of the Em spectrum and towards earth.
True or False: The universe is still expanding.
True.
The speed of the wave depends on the _____.
Medium
What is absorption?
Absorption is when one thing absorbs or is took in by another.
What is Excited State?
Excited State is when an electron has extra energy and has moved to a higher energy level.
What is the Doppler Effect?
The Doppler Effect is a change in the frequency of a wave when an observer moves relative to the source of the wave.
Who found out that the galaxies were moving away from us?
Edwin Hubble
What is the equation that can calculate speed?
v = fλ
What is Transmission?
Transmission is something light goes through.
What is a continuous Spectrum?
A Continuous Spectrum shows all the colors of light blended together with no gaps like a full rainbows.
True or False: If the object stays still, but the observer moves, the Doppler effect is still observed.
Who was the Big Bang founded by?
Georges Lemaitre
What is frequency?
How often a wave occurs in a second
What is Reflection?
Reflection is when light bounces off of something.
What is a Line Spectrum?
A Line Spectrum has only specific colors of light with dark spaces in between.
True or False: A moving wave source does not affect the frequency of the wave encountered by the observer.
False.
What is the Big Bang?
It's is the scientific theory on how the universe started.