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

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