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Ninth Grade (Grade 9) Planetary Motion Questions

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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
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
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
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
Grade 9 Planetary Motion
If it is summer in the northern hemisphere what is the orientation of the southern hemisphere to the sun?
  1. pointing towards the sun
  2. pointing away from the sun
  3. pointing towards the moon
  4. pointing away from the moon
Grade 9 Planetary Motion
The                         causes day and night.
  1. revolution of the earth
  2. rotation of the earth
  3. orbit of the earth
  4. earth's gravity
Grade 9 Planetary Motion
The moon moves in a line directly between Earth and the sun, casting a shadow on Earth.
  1. Solar Eclipse
  2. Lunar Eclipse
  3. Winter Solstice
  4. Earth Eclipse
Grade 9 Planetary Motion
An eclipse of the moon, moon passes through Earth’s shadow
  1. Solar Eclipse
  2. Lunar Eclipse
  3. Summer Solstice
  4. Earth Eclipse
Grade 9 Planetary Motion
If the winter solstice occurs the first weekend we are out for winter break, what will also be true about that day?
  1. It will be the shortest day of the year
  2. The sun will rise at its most southeastern point
  3. The sun's zenith will be at its lowest point of the year
  4. All of the above
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
Grade 9 Planetary Motion
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