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Ninth Grade (Grade 9) Astronomy Questions

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Grade 9 Stars
Which area of Earth Science includes the study of stars?
  1. meteorology
  2. hydrology
  3. geology
  4. astronomy
Grade 9 Outer Planets
What is the name of the region beyond Neptune's orbit where icy bodies lie?
  1. The Kuiper Belt
  2. The Oort Cloud
  3. The Outer Asteroid Belt
  4. All of the Above
Grade 9 The Moon
A lunar eclipse can only occur during which phase of the Moon?
  1. Quarter Moon
  2. New Moon
  3. Full Moon
  4. Crescent Moon
Grade 9 Stars

This question is a part of a group with common instructions. View group »

The process in which smaller atomic nuclei combine into large atomic nuclei is known as
  1. gravitational attraction.
  2. parallax.
  3. nuclear fusion.
  4. the Doppler effect.
Grade 9 The Moon
When the Moon is on the opposite side of the Earth from the Sun, what could the phase of the Moon?
  1. New Moon
  2. New Gibbous Moon
  3. New Half Moon
  4. Full Moon
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
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
The change between day and night is caused by                             .
  1. Earth's rotation on its axis
  2. Earth's orbit of the Sun
  3. the Moon's orbit of Earth
  4. the Sun going down
Grade 9 Planetary Motion
What is an eclipse of the Moon, when the Moon passes through Earth’s shadow.
  1. Solar Eclipse
  2. Lunar Eclipse
  3. Summer Solstice
  4. Earth Eclipse
Grade 9 Universe
The Milky Way galaxy is a(n)                     .
  1. spiral galaxy
  2. elliptical galaxy
  3. irregular galaxy
  4. barred spiral galaxy
Grade 9 Inner Planets
Which is closest to our Sun in our solar system?
  1. Pluto
  2. Earth
  3. Mercury
  4. Mars
Grade 9 Universe
What is the force that tends to pull together the matter in stars and planets?
  1. gravity
  2. nuclear fusion
  3. expansion
  4. nuclear fission
Grade 9 Inner Planets
Which describes Mercury's position in the solar system?
  1. innermost terrestrial planet
  2. innermost Jovian planet
  3. outermost terrestrial planet
  4. outermost Jovian planet
Grade 9 Outer Planets
Io is a moon of                .
  1. Mars
  2. Venus
  3. Jupiter
  4. Earth's Moon
Grade 9 Planetary Motion
The force that holds planets in their orbits is called
  1. parallax.
  2. revolution.
  3. rotation.
  4. gravity.
Grade 9 The Moon
What phase of the Moon is shown?
Moon Phase - Waxing Crescent
  1. first quarter
  2. waxing crescent
  3. waning gibbous
  4. new moon
Grade 9 Universe
What were the first elements made after the Big Bang?
  1. Hydrogen & Helium
  2. Hydrogen & Lithium
  3. Helium & Oxygen
  4. Helium & Argon
Grade 9 Stars
The measure of a star's brightness is called its                .
  1. color index
  2. visual binary
  3. magnitude
  4. parallax
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.
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