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Ninth Grade (Grade 9) Solar System Questions

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Grade 9 The Moon
What is the most popular theory on how the Moon formed?
  1. capture theory
  2. impact theory
  3. simultaneous formation theory
  4. magic theory
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 Small Bodies and Dwarf Planets
How are comets formed?
  1. They were formed when the solar system was formed.
  2. The planets' gravity pull them in and they start orbiting the sun.
  3. They are smaller portions of meteorites.
  4. They are smaller portions of asteroids.
Grade 9 The Moon
Which phase of the Moon is this? The visible part of the Moon is represented by the white.
Moon Phase - Waning Gibbous
  1. waxing crescent
  2. waning crescent
  3. waning gibbous
  4. waxing gibbous
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 Sun
Where is most of the Sun's energy produced?
  1. in the corona
  2. in the photosphere
  3. in the core
  4. none of the above
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 Outer Planets
The four distant planets are made mostly of
  1. gas.
  2. water.
  3. rock.
  4. radiation.
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.
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