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Ninth Grade (Grade 9) Astronomy Questions

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Grade 9 Universe
Grade 9 Stars
A low mass star will end its life as which of the following?
  1. Red Dwarf
  2. Red Giant
  3. Black Dwarf
  4. Brown Dwarf
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 Stars
The H-R diagram plots star
  1. absolute magnitude vs. apparent magnitude.
  2. mass vs. absolute magnitude.
  3. luminosity vs. surface temperature.
  4. surface temperature vs. mass.
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 Universe
Which set of terms is arranged from smallest to largest?
  1. galaxy, star, cluster, supercluster
  2. star, supercluster, cluster, galaxy
  3. galaxy, supercluster, star, cluster
  4. star, galaxy, cluster, supercluster
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
Grade 9 Outer Planets
The four distant planets are made mostly of
  1. gas.
  2. water.
  3. rock.
  4. radiation.
Grade 9 Stars
When is a star born?
  1. a nebula expands
  2. helium and oxygen are mixed
  3. nuclear fusion starts
  4. a protostar begins to cool
Grade 9 Inner Planets
At different latitudes the Sun's energy strikes Earth                             .
  1. at the same angle
  2. at different angles
  3. only during part of the year
  4. only at night
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 Stars
What color are the hottest stars?
  1. blue
  2. yellow
  3. orange
  4. red
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 The Moon
How does an equinox occur?
  1. When the Sun passes the equator from the Eastern to the Western.
  2. When the axis of the Earth is tilted at an angle of 24°.
  3. When the Moon is positioned exactly above the equator.
  4. When the position of the Sun is exactly over the equator.
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 Stars
What does a Hertzsprung-Russell (H-R) diagram show?
  1. the location of stars in the sky
  2. the absolute magnitude and temperature of the stars
  3. the apparent magnitude and temperature of the stars
  4. the absolute magnitude and mass of stars
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