
Unit 3: Universe
Quiz by Rebekah Beard
Track each student's skills and progress in your Mastery dashboards
Cosmic Microwave Background
What kind of galaxy do we live in?
"All matter and energy in the universe was once extremely compressed and then expanded suddenly in all directions." This is an explanation of...
Where would we find our solar system in this representation of our galaxy?
The brightest stars can be located
On an HR Diagram, the temperature increases to the
The hottest stars are what color?
Which of the following stars is the hottest?
Based on the diagram, which type of stars would belong to spectral class M and have the highest luminosity?
Which student best described stars and nebulas correctly?
What evidence indicates that galaxies are moving away from Earth?
The Whirlpool galaxy is estimated to be 60,000 light years in diameter. Based on this information, which of the following statements is true?
What describes cosmic microwave radiation accurately?
Which component from the table above is MOST likely a galaxy?

Which component from the table above is MOST likely a solar system?

Which of the following stars would be seen as the brightest star?
Our nearest star neighbor, Proxima Centauri, is 4 light years away from Earth. How old is the light by the time we see it?
Two stars have the same absolute magnitude. Why does one appear brighter than the other?
Which image is a spiral galaxy?

Our sun is a ______________, ____________ sized star.
Which is the following is NOT part of a high mass star's life cycle?
A wave with a long wavelength will have a ______ frequency and _____ energy
As galaxies move away from our galaxy
a shift on the electromagnetic spectrum
(EMS) is noticed. This phenomena is
called _____________.
What determines the color of visible light?
Which of the following correctly arrange stars from coolest to hottest?
Betelgeuse is classified as a ____________ star.
Huge clouds of dust and gas are called
From smallest to the largest
Which star has the greatest absolute magnitude?
Where do I find the dimmest stars on an HR diagram?
On the HR diagram, where is Pollux?
How can a scientist tell how quickly and object in space is moving and whether or not its moving toward Earth?
With the use of the Hubble Space Telescope, scientists discovered a giant runaway star. It is 90 times larger than the sun and is very hot and blue-white in color. Why does the sun appear to be brighter that this runaway star when viewed from Earth?
The Hertzsprung-Russell diagram shows how the sun is classified among the stars. A star that is several thousand times brighter than the sun with a temperature lower than 4,000K would be classified as-
Two stars are identified on the Hertzsprung-Russell diagram. Based on this diagram, how do the characteristics of Star 1 and Star 2 compare?
The universe has many different components. Which list places four components of the universe in the most likely order from smallest to largest?
Which scientist gave us universal laws of gravity?
First person to give evidence that the universe is expanding by observing a red shift.
As galaxies move away from our galaxy a shift on the electromagnetic spectrum (EMS) is noticed. This phenomena is called _____________.
The higher the energy, the higher the ______________
I am a main sequence star with a temperature slightly greater that 10,000 degrees. Who am I?