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Ninth Grade (Grade 9) Universe Questions

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Grade 9 Universe
Which object has such a strong surface gravity that light cannot escape it?
  1. black hole
  2. black dwarf
  3. red giant
  4. white dwarf
Grade 9 Universe
A galaxy that is moving toward Earth will show                            .
  1. a decrease in brightness
  2. an increase in light years
  3. a blueshift in the spectrum
  4. a redshift in the spectrum
Grade 9 Universe
What is the name of a cloud of dust and gas held together by gravity?
  1. Nebula
  2. Oort cloud
  3. Galaxy
  4. Red giant
Grade 9 Universe
The Milky Way galaxy is a(n)                     .
  1. spiral galaxy
  2. elliptical galaxy
  3. irregular galaxy
  4. barred spiral galaxy
Grade 9 Universe
What is the force that tends to pull together the matter in stars and planets?
  1. gravity
  2. nuclear fusion
  3. expansion
  4. nuclear fission
Grade 9 Universe
What were the first elements made after the Big Bang?
  1. Hydrogen & Helium
  2. Hydrogen & Lithium
  3. Helium & Oxygen
  4. Helium & Argon
Grade 9 Universe
How long ago did the Big Bang happen?
  1. 10,000 years ago
  2. 13.7 billion years ago
  3. 13.7 million years ago
  4. 13.7 trillion years ago
Grade 9 Universe
What is a light-year?
  1. 365 days
  2. distance light travels in a year
  3. distance from the Sun to Earth
  4. amount of light produced by the Sun in a year
Grade 9 Universe
What is the leading explanation about how the universe began?
  1. Multiverse Theory
  2. Big Bang Theory
  3. Hubble Theory
  4. Interstellar Medium
Grade 9 Universe

This question is a part of a group with common instructions. View group »

From right to left, the Hubble sequence shows                                            .
  1. elliptical, lenticular, and spiral galaxies
  2. spiral, lenticular, and elliptical galaxies
  3. elliptical, irregular, and spiral galaxies
  4. spiral, irregular, and elliptical galaxies
Grade 9 Universe
The theory that proposes that the universe originated as a singularity, which subsequently exploded and expanded to form the universe.
  1. Magnitude Theory
  2. Milky Way Galaxy Theory
  3. Big Bang Theory
  4. Black Hole Theory
Grade 9 Universe

This question is a part of a group with common instructions. View group »

The Hubble sequence classifies galaxies based upon their                .
  1. age
  2. size
  3. morphology
  4. number of stars
Grade 9 Universe
Which set of terms is arranged from smallest to largest?
  1. galaxy, star, cluster, supercluster
  2. star, supercluster, cluster, galaxy
  3. galaxy, supercluster, star, cluster
  4. star, galaxy, cluster, supercluster
Grade 9 Universe
The distance that light travels in one year is
  1. a parsec.
  2. an arcsecond.
  3. a light-year.
  4. an astronomical unit.
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