Ocean 115 - Introduction to Oceanography » Spring 2022 » Stars

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Question #1
How many stars are in the Milky Way galaxy?
A.   Several billion
B.   Hundreds of billions
C.   Hundreds of trillions
D.   Hundreds of millions
E.   Several million
Question #2
What caused the first stars to form?
A.   Gravity
B.   Electromagnetism
C.   The weak nuclear force
D.   The strong nuclear force
Question #3
What did the first stars produce?
A.   Hydrogen and helium
B.   New elements, such as oxygen and carbon
C.   Hydrogen
D.   Protons
Question #4
How did the produced material get into space to be part of our bodies?
A.   Neutrino flow
B.   Supernovas
C.   Gravity
D.   Electromagnetism
Question #5
The brightest most massive stars are?
A.   Yellow
B.   Red
C.   Blue
D.   Orange
Question #6
Why does the star shine?
A.   Gravity
B.   Electromagnetic repulsion
C.   Nuclear fission
D.   Nuclear fusion
Question #7
What causes sun spots?
A.   Gravitational anomalies
B.   Hot spots under solar storms
C.   Large nuclear explosions on a star
D.   Cool spots under solar storms
Question #8
What will happen to the Sun in 5 billion years?
A.   It will become a brown dwarf
B.   It will become a red giant
C.   It will go supernova
D.   It will stay the same
Question #9
Where are stellar nurseries found?
A.   At the galaxy edges
B.   In black holes
C.   Molecular clouds at the center of the galaxy
D.   Molecular clouds all over the galaxy
Question #10
What is Gliese 229 and what orbits it?
A.   A small red star with a brown dwarf in orbit
B.   A red giant with a black hole in orbit
C.   A main sequence star with a brown dwarf in orbit
D.   A T-tauri star with a proto star in orbit
E.   A proto star with a white dwarf in orbit

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