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Tenth Grade (Grade 10) Astronomy Questions

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Grade 10 Inner Planets
Which planet is called as the Red Planet?
  1. Mars
  2. Venus
  3. Jupiter
  4. Neptune
Grade 10 Inner Planets
Mars is 1.5 astronomical units from the sun. If the planets are lined up like the image below, which of the following is true? (The image below may not be to scale)
  1. Earth is always closer to the Sun then it is to Mars.
  2. Mars is twice the distance to the Sun then Earth is.
  3. Mars is half the distance to Earth then the Earth is to the Sun.
  4. Mars is 1.5 light years away from the Earth.
Grade 10 Universe
The                       is the most widely accepted theory for how the universe began.
  1. Plate Tectonic Theory
  2. Big Bang Theory
  3. Steady-State Theory
  4. Solar System Theory
Grade 10 Universe
According to the Big Bang Theory, the universe is roughly how old?
  1. 13.8 thousand years old.
  2. 13.8 million years old.
  3. 13.8 billion years old.
  4. 13.8 trillion years old.
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 Universe
Edwin Hubble helped provide evidence of the big bang theory by doing what?
  1. Building the Hubble telescope.
  2. Showing that galaxies are moving away from us, so the universe is expanding.
  3. Showing that some galaxies are getting closer to us, some are moving away.
  4. Discovering how to measure long distances.
Grade 10 Solar System
Grade 10 Inner Planets
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 Outer Planets
This planet rotates on its side, like a barrel.
  1. Neptune
  2. Uranus
  3. Saturn
  4. Jupiter
Grade 10 Inner Planets
Grade 10 Universe
Grade 10 Universe
There are three fundamental points to the Big Bang theory. Which of the following is NOT one of them?
  1. The universe is expanding and has always been expanding.
  2. In the beginning, the universe was crammed into a space smaller then the period at the end of this sentence.
  3. The universe is cooling as it expands.
  4. The universe is accelerating at a constant rate as it expands.
Grade 10 Stars
Stars spend most of their time in what section of the Hertzsprung-Russell diagram?
(Use the diagram from the previous question for reference).
  1. The top right, as giant or supergiant stars.
  2. In the main sequence, from the top left to the bottom right.
  3. In the bottom left, as white dwarfs.
  4. They spend their time equally in all sections of the diagram.
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 Stars
What is the most important factor when determining whether or not a star is going to explode in a supernova?
  1. The star's temperature.
  2. The star's color.
  3. The star's size.
  4. The star's elemental composition.
Grade 10 Stars
A star that we observe is accelerating away from us at an increasing rate. How does this effect the spectral light image?
  1. It interferes with equipment, creating blurry and unreadable images.
  2. It shifts all the spectral lines to the red side of the spectrum.
  3. It shifts all the spectral lines to the blue side of the spectrum.
  4. It compressed the sound that the spectral images make, making it sound higher pitched.
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