The EMS
What wavelength is the longest?
Radio Waves
What factor affects the color of a star?
Temperature
What are the interior layers if the sun?
Core, Radiation Zone, and Convection Zone
What are the main 3 types of galaxies?
Spiral, Elliptical, and Irregular
What is the Big Bang theory?
All matter and energy in the universe was compressed into an extremely small volume that 13 to 15 billion years ago exploded and began expanding in all directions.
What is frequency?
the number of waves that pass a given point in a given time.
How is a star born?
What are prominences?
loops of gas that erupt from sunspot regions
What is a galaxy?
Collection of millions to billions of stars bound together by gravity.
What is the evidence the big bang did happen?
The Doppler effect and Cosmic Background Radiation are the main two.
What type of wave is felt as heat?
Infrared Waves
List the color of the stars from hottest to coldest:
blue, white, yellow, orange, and red
What are the 3 outer layers of the sun?
Photosphere, chromosphere, and corona
What are the two well known Local Groups?
The Milky Way and Andromeda
What is the cosmic background radiation?
Microwaves of radiation produced by the big bang.
What type of wave can be seen as colors?
Visible Light
What is the diagonal group of stars on the HR diagram called?
main sequence
In what layer does nuclear fusion occur?
the core
What type of galaxy is the Milky Way?
Spiral Galaxy
What is the doppler effect?
The red shift and blue shift
What is a fact about Ultraviolet Light?
Can kill living cells, causes skin cancer
Type of star that has low temperature but high luminosity
red supergiant
areas of gas in photosphere that are cooler than surrounding gases; give off less energy; last from a few hours to a few months.
What is the most common galaxy?
Elliptical Galaxies
How old is the universe?
about 13.8 billion years old