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Ninth Grade (Grade 9) Planetary Motion Questions

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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
Earth rotates on its axis from                .
  1. north to south
  2. south to north
  3. west to east
  4. east to west
Grade 9 Planetary Motion
Which causes day and night?
  1. Earth's revolution
  2. Earth's rotation
  3. Earth's orbit
  4. Earth's gravity
Grade 9 Planetary Motion
A lunar eclipse may occur when
  1. Earth is between the Sun and the Moon.
  2. the Sun is between Earth and the Moon.
Grade 9 Planetary Motion
The point in Earth's orbit where Earth is closest to the Sun is called
  1. perihelion.
  2. transit.
  3. aphelion.
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
What do changes in Earth's orbit affect most greatly?
  1. Earth's shape
  2. Earth's temperatures
  3. Earth's rotation
  4. Earth's tilt
Grade 9 Planetary Motion
The apparent rising and setting of the Sun, as viewed from Earth, is caused by
  1. Earth's rotation.
  2. Earth going around the Sun.
  3. the Sun going around Earth.
Grade 9 Planetary Motion
What is represented by the diagram below?
Neap Tide
  1. neap tide
  2. spring tide
  3. solar eclipse
  4. lunar eclipse
Grade 9 Planetary Motion
Earth rotates once on its axis about every                .
  1. hour
  2. 27-1/2 days
  3. 24 hours
  4. 12 months
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 Earth.
  2. Mercury revolves faster than Earth.
  3. Earth is farther from the Sun than Mercury.
  4. Earth has a lower orbital eccentricity than Mercury.
Grade 9 Planetary Motion
A solar eclipse may occur when
  1. the Moon is between Earth and the Sun.
  2. Earth is between the Moon and the Sun.
Grade 9 Planetary Motion
Which of the following is not one of Kepler's Laws of planetary motion?
  1. The orbit of every planet is an ellipse with the Sun at a focus.
  2. A line joining a planet and the Sun sweeps out equal areas during equal intervals of time.
  3. When viewed in an inertial reference frame, an object either is at rest or moves at a constant velocity, unless acted upon by an external force.
  4. The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.
Grade 9 Planetary Motion
                is the spinning of Earth on its axis.
  1. Revolution
  2. Rotation
  3. Orbit
  4. Tilt
Grade 9 Planetary Motion
Earth's axis is tilted toward
  1. the Sun.
  2. the Moon.
  3. Polaris.
  4. Mars.
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