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Tenth Grade (Grade 10) Astronomy Questions

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Grade 10 Solar System
Who proposed the heliocentric model of the solar system?
  1. Copernicus
  2. Kepler
  3. Ptolemy
  4. Galileo
Grade 10 Small Bodies and Dwarf Planets
When a meteor hits Earth, it is now called as                    .
  1. asteroid
  2. comets
  3. meteorite
  4. interplanetary dust
Grade 10 Stars
If we are using the hubble telescope observe a star that is 20 million light years away, which of the following statements are true?
  1. The star moving away from us, so the light it emits is moving slower.
  2. The star has to be made out of hydrogen, otherwise we wouldn't be able to see it.
  3. We wouldn't be able to see a star that is 20 million light years away because the universe hasn't been around long enough for the light to reach us.
  4. The star could no longer exist, because the light we are seeing has travelled for 20 million years and the star could have died.
Grade 10 Stars
Max is including this image in his astronomy paper. Which of the following should Max use as a title for the image?
H-R Diagram With Text Labels - Small
  1. Star Chart
  2. Hubble Sequence
  3. Hertzsprung–Russell Diagram
  4. Harvard Spectral Classification
Grade 10 Inner Planets
Earth is sometimes described as a giant                .
  1. electromagnet
  2. circuit
  3. magnet
  4. compass
Grade 10 Small Bodies and Dwarf Planets
These small bodies are also called shooting stars.
  1. asteroids
  2. comets
  3. meteors
  4. interplanetary dust
Grade 10 Small Bodies and Dwarf Planets
Why is a meteorite different from a comet?
  1. It enters the Earth's atmosphere.
  2. It has a tail of ice and gas.
  3. It has a nucleus mad of rock and snow.
  4. It is found in orbit between Jupiter and Mars.
Grade 10 Inner Planets
Which planet has the highest surface temperature?
  1. Mars
  2. Mercury
  3. Earth
  4. Venus
Grade 10 Stars
Why is the Hertzsprung-Russell Diagram, like the one below, significant to astronomers?
  1. Astronomers can know a star’s internal structure and evolutionary stage simply by determining its position in the diagram.
  2. Astronomers can use the diagram to tell how big a star is compared to the light it emits, and predict where new black holes will be formed.
  3. Astronomers can see the red shift in any star in the diagram, and use that information to tell how far away the star is.
  4. Astonomers can know from the chart if a star is similar in structure to our sun, and use it as a predictor for how likely that star will have another world like earth that we can inhabit.
Grade 10 Small Bodies and Dwarf Planets
What is the composition of an asteroid?
  1. Ice, dust, rock, frozen gases
  2. Metals and rocky material
  3. Rock, ice, salt, carbon
  4. Rock, ice, magma, frozen gases
Grade 10 Outer Planets
Which planet has the largest moon in our solar system, Ganymede?
  1. Saturn
  2. Earth
  3. Jupiter
  4. Uranus
Grade 10 Universe
Collisions between galaxies are likely                                    and result in                                   .
  1. common; new star formation
  2. uncommon; new star formation
  3. common; frequent star collisions
  4. uncommon; frequent star collisions
Grade 10 The Moon
How often do the phases of the Moon cycle repeat?
  1. Around 24 hours
  2. Around a week
  3. Around once a month
  4. Around once a year
Grade 10 Outer Planets
Which planet has the most complex ring system?
  1. Uranus
  2. Neptune
  3. Saturn
  4. Jupiter
Grade 10 Sun
Fusion occurs in the Sun's                .
  1. core
  2. corona
  3. photosphere
  4. chromosphere
Grade 10 Outer Planets
This planet rotates on its side, like a barrel.
  1. Neptune
  2. Uranus
  3. Saturn
  4. Jupiter
Grade 10 Small Bodies and Dwarf Planets
Which part of the comet is on the opposite side of the comet from the Sun?
  1. coma
  2. tail
  3. nucleus
  4. head
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