Basics
What is the apparent shift in the frequency of a wave from the relative movement between the source and the observer?
What supporting evidence states that galaxy is moving away from the observer – making the light appear more red called?
The Red Shift
According to the doppler effect, when an object is moving towards you, sound waves are getting _______.
closer
What part of the eloectromagnetic spectrum is CMB found?
Microwave
What instrument was used to observe the red shift?
Hubble telescope
Point where everything began. Where all energy and heat were focused.
singularity
What shape does the CMB show the universe is?
Oval sphere
What color is the shortest wavelength in the visible light?
Violet
What third element has been mentioned in trace (small amounts) other than Hydrogen and Helium?
Lithium
What are radio waves used for?
broadcasting and communication
Which came first in the timeline of BBT: stars or galaxies?
Stars
What is the radiation left over heat from the expansion called?
Cosmic Microwave Background Radiation
When an object is getting further away, what happens to the wavelengths?
Wavelengths get bigger, increase in size
Which waves are the least damaging?
Radio waves
Why are gamma and xrays more dangerous/damaging than radio waves?
The wavelengths are shorter, therefore more energy in higher frequency
How long ago was the beginning of the universe?
13.8 billion years ago
What is the universe composition of helium and Hydrogen?
Hydrogen 75%
Helium 25%
What happens to frequency as wavelengths get longer?
frequency decreases
Which wavelengths are the most dangerous/harmful?
Gamma
What color does a star have if it is moving towards Earth?
blue
What order did the formation of the universe go in order?
protons and neutrons
Galaxies
Intense heat and density cause expansion
Hydrogen and helium atoms
Stars
Intense heat and density cause expansion
Protons and neutrons
Hydrogen and helium
Stars
Galaxies
What 3 pieces of evidence support the BBT?
1. The red shift
2. Cosmic Background microwave radiation
3. Hydrogen and Helium presence
What color is visible light when wavelengths get longer?
Red
How was CMBR discovered?
Accidentally on an antenna at a radio broadcasting station
What is Mrs. Wilson's favorite TV show?