Life Cycle of Stars
2 months ago
mlueck
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20 QuestionsShow answers
  • Question 1
    20 seconds
    Q.

    Stars are formed from big clouds of gas and dust is known as:

    answer choices

    dust cloud

    space fog

    neutron clouds

    nebulae

  • Question 2
    20 seconds
    Q.

    The only force acting on the nebulae is:

    answer choices

    thermal expansion

    singularities

    gravity

    microscopic adhesion

  • Question 3
    20 seconds
    Q.

    A star is born when:

    answer choices

    nuclear fusion starts

    a nebula becomes a protostar

    gases in a nebula condense

    hydrogen is used up in fusion processes

  • Question 4
    20 seconds
    Q.

    The two forces battling it out for the stability of a star are gravitational forces and:

    answer choices

    singularity expansion

    chemical bonding forces

    tidal currents

    thermal forces and convection

  • Question 5
    20 seconds
    Q.

    Once star has ignited and has used up all of the hydrogen are called:

    answer choices

    Neutron Star

    White Dwarfs

    Red Giants

    Black Holes

  • Question 6
    20 seconds
    Q.

    When the core of a Red Giant collapses it becomes a:

    answer choices

    White Dwarf

    Supernova

    Red Supergiant

    Black Hole

  • Question 7
    20 seconds
    Q.

    When a massive star begins to cool and expand it is known as a:

    answer choices

    Black Dwarf

    Red Giant

    Red Supergiant

    White Dwarf

  • Question 8
    20 seconds
    Q.

    When the core of a Red Supergiant collapses, a bright event occurs, known as:

    answer choices

    white dwarf

    supernova

    big bang

    black hole

  • Question 9
    20 seconds
    Q.

    After a supernova, the core can collapse into a neutron star, or if massive enough it can become a:

    answer choices

    Black Hole

    White Dwarf

    Red Supergiant

    Black Dwarf

  • Question 10
    20 seconds
    Q.

    When a Red Giant's outer atmosphere drifts away it is now known as:

    answer choices

    planetary cloud

    White dwarf cloud

    planetary nebula

    expanding nebula

  • Question 11
    20 seconds
    Q.

    One possible outcome that is left after a supernova is a super dense core called a:

    answer choices

    Neutron Star

    White Dwarf

    Red Giant

    Black Dwarf

  • Question 12
    20 seconds
    Q.

    A black hole is black because:

    answer choices

    there is nothing in it

    it is too small to see

    it is inherently evil

    even light cannot escape its gravity

  • Question 13
    120 seconds
    Q.

    Our sun is currently in what star stage?

    answer choices

    Protostar

    Nebula

    Main Sequence

    Red Giant

  • Question 14
    120 seconds
    Q.

    Main sequence stars are made primarily of which elements?

    answer choices

    Hydrogen only

    Helium and Carbon

    Carbon and Iron

    Hydrogen and Helium

  • Question 15
    20 seconds
    Q.

    A star that has begun nuclear fusion will last for:

    answer choices

    millions of years

    a few thousand years

    as long as the universe survives

    forever

  • Question 16
    30 seconds
    Q.

    When a nebula condenses and takes on a shape it is called:

    answer choices

    a red supergiant

    a black hole

    a white dwarf

    a protostar

  • Question 17
    120 seconds
    Q. Why won't our sun ever become a black hole?
    answer choices
    It is too massive
    It is too old
    It is too young
    It is too small
  • Question 18
    300 seconds
    Q.

    The stable and longest lasting period of a star’s life cycle is called:

    answer choices

    The birth of a star

    Nebula

    Neutron star

    Main Sequence

  • Question 19
    300 seconds
    Q. What fuel do stars use? 
    answer choices
    Oxygen
    Hydrogen
    Carbon
    Iron
  • Question 20
    30 seconds
    Q.

    What is a celestial body that is composed of gas and emits light from nuclear fusion reactions?

    answer choices

    Nebula

    Star

    Galaxy

    Planet

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