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Our universe
Kontribusi oleh: Collins
  • 1. Absolute magnitude is the brightness of a star measured from ...
A) 1 light year away from earth
B) where it is
C) a stardard distance from earth
D) 1,000,000 km away
  • 2. Apparent magnitude how bright a star is measured from....
A) 1,000,000 km away
B) where it is
C) 1 light year way from earth
D) a stardard distance from earth
  • 3. What is the apparent magnitude of the sun?
A) -27
B) -47
C) 0
D) 7
  • 4. What is the apparent magnitude of the moon?
A) 0
B) 14
C) -24
D) -13
  • 5. What is the apparent magnitude of mars?
A) -14
B) -3
C) 0
D) 3
  • 6. What is the apparent magnitude of venus
A) 2
B) -2
C) -5
D) 0
  • 7. What is the apparent magnitude of the faintest object to the naked eye under perfect conditions?
A) -2.8
B) 6.5
C) -.24
D) 9.5
  • 8. What is the absolute magnitude of the sun?
A) 25
B) 5
C) -25
D) -15
  • 9. What relationship does the Hertzsprung-Russell diagram show?
A) temperature and brightness of stars
B) The brightness and color of stars
C) All of the answers are correct
D) The color and temperature of the stars
  • 10. What type of star is the sun on the Hertzsprung-Russell diagram?
A) giant
B) main sequence
C) white dwarf
D) super giant
  • 11. How are heat and color of a star related?
A) White stars are the hottest
B) yellow stars are the hottest
C) blue stars are the hottest
D) red stars are the hottest
  • 12. How are heat and color of a star related?
A) yellow stars are the coolest
B) white stars are the coolest
C) red stars are the coolest
D) blue stars are the coolest
  • 13. Most stars.....
A) will become a black hole
B) will explode into a Nova or Super Nova
C) will become a Nebula
D) are main sequence stars
  • 14. A white dwarf is....
A) a extremely dense mass that no light can escape from
B) a cloud of gasses
C) a start that has exploded
D) None of the answers are correct
  • 15. Which of the following is NOT a type of galaxy?
A) conical
B) irregular
C) spiral
D) elliptical
  • 16. What is the closest major galaxy to ours?
A) Crab Nebula
B) Hercules
C) Andromeda
D) Alpha Centuari
  • 17. The Big Bang Theory explains....
A) the formation of the universe
B) how long it will take to travel in space
C) how the sound travels through space
D) how stars explode
  • 18. Astronomers think the universe is about...
A) 4 billion years old
B) 100 million years old
C) 14 billion years old
D) 1 billion years old
  • 19. Is the universe "open" or "close"
A) It is open.
B) It is closed.
C) It is not known at this time.
  • 20. When "red shift" occurs....
A) Objects are stationary.
B) objects are moving away from you
C) Objects are moving toward you.
D) Red stars are moving toward you.
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