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Ninth Grade (Grade 9) Planetary Motion Questions

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Grade 9 Planetary Motion
Planets that are close to the sun
  1. move through the asteroid belt.
  2. orbit faster than the outer planets.
  3. orbit slower than the outer planets.
  4. move closer and closer to the sun.
Grade 9 Planetary Motion
One day on Mercury is equal to about 59 Earth days. Which statement best explains this phenomena?
  1. Mercury rotates slower than the Earth.
  2. Mercury revolves faster than the Earth.
  3. Earth is farther from the sun than Mercury.
  4. Earth has a lower orbital eccentricity than Mercury.
Grade 9 Planetary Motion
How long does it take earth to complete one revolution?
  1. 29.5 days
  2. 365.25 days
  3. 24 hours
  4. 72 hours
Grade 9 Planetary Motion
What is represented by the diagram shown?
Neap Tide 2
  1. neap tide
  2. spring tide
  3. solar eclipse
  4. lunar eclipse
Grade 9 Planetary Motion
Grade 9 Planetary Motion
Grade 9 Planetary Motion
What does the term equinox mean?
  1. equal day
  2. equal night
  3. equal year
  4. leap year
Grade 9 Planetary Motion
Grade 9 Planetary Motion
Grade 9 Planetary Motion
The gravitational attraction between sun, moon, and Earth
  1. causes tides
  2. causes seasons to change
  3. causes a full moon
Grade 9 Planetary Motion
Select the letter of the two main motions of the Earth.
  1. rotation and precession
  2. rotation and revolution
  3. revolution and precession
  4. rotation and aphelion
Grade 9 Planetary Motion
How long does it take earth to complete a rotation?
  1. 29.5 days
  2. 365.25 days
  3. 24 hours
  4. 72 hours
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