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- 1. Multiple Choice
What is responsible for keeping the Moon's orbit regular?
the force of gravity exerted on the Moon by Earth
the nuclear energy exerted on the Moon from Earth
the thermal energy exerted on the Moon from Earth
the electromagnetic force exerted on the Moon by Earth
- 2. Multiple Choice
Meteoroids are
small chunks of rock and iron that burn up in Earth's
atmosphere as they become meteors.
small chunks of ice and gas that burn up in Earth's atmosphere as they become asteroids
giants chunks of gas and minerals that condense and then ignite to become stars.
giant chunks of rock and minerals that collect gas and dust to
become planets
- 3. Multiple Choice
The bright streak of light that we call a shooting star is actually
a meteoroid going through radioactive decay.
a meteoroid disturbing Earth's magnetic field
a meteoroid reflecting the Sun's rays to Earth.
a meteoroid entering the atmosphere and burning up.
- 4. Multiple Choice
Which description best defines the geocentric model?
a model of the solar system in which the Sun, Moon, and other planets revolve around Earth
a model of the solar system in which Earth, Moon, and other
planets revolve around the Sun
a model of the solar system in which the Sun, Moon, and all of
the planets rotate but do not revolve
a model of the solar system in which the Sun, Moon, and all of
the planets revolve around a central axis
- 5. Multiple Choice
What evidence exists to support the big bang theory?
Earth orbits the Sun.
Earth rotates on its axis
The universe is still constantly expanding.
All objects in the universe are always growing.
- 6. Multiple Choice
Scientists have documented that galaxies they observe seem to be moving farther away. Which concept best explains this?
black holes because an unseen force is pulling objects away from the center of the universe
big bang theory because the universe exploded from a single point in space and is always expanding
gravitational force because objects are being drawn toward the edges of the universe
solar system because the mass of the Sun pushes other galaxies away
- 7. Multiple Choice
What makes up a galaxy?
a group of stars that together form a visible pattern
a collection of planets orbiting a central star system
any object that has smaller bodies caught within its gravity
a massive collection of star systems orbiting a central point
- 8. Multiple Choice
Which galaxy is the band of thousands of stars that contains Earth?
Andromeda
Centaurus A
Milky Way
Sagittarius A*
- 9. Multiple Choice
Which of the following contains Earth's galaxy as well as many other galaxies?
a nebula
the Milky Way
the Local Group
a black hole
- 10. Multiple Choice
Select all of the following that are found within Earth's solar system.
asteroids
comets
galaxies
moons
planets
- 11. Multiple Choice
Tom researches the planets and concludes that the outer planets have more moons than the inner planets. Which inquiry skill best helps him draw this conclusion?
observing
hypothesizing
making a model
comparing
- 12. Multiple Choice
Mercury is 0.387 astronomical units (AU) from the Sun. What does this indicate about Mercury?
Mercury has an eccentric orbit.
Mercury is smaller than the Sun.
Mercury is closer to the Sun than Earth.
Mercury is the brightest planet seen from Earth.
- 13. Multiple Choice
The existence of the force of gravity explains why the Moon
has no atmosphere.
orbits around Earth.
appears brighter on different nights.
appears to change in size each month.
- 14. Multiple Choice
Which force and property have the greatest effect on the orbit of a planet?
atmospheric pressure and diameter
gravitational force and mass
atmospheric pressure and temperature
gravitational force and temperature
- 15. Multiple Choice
The primary force behind planetary orbits is
magnetism
gravity.
friction
electricity.
- 16. Multiple Choice
Why is the asteroid belt located in the space between the Sun and Jupiter?
This space is where the pull of gravity from the Sun and from Jupiter are equal
The asteroids use to be a planet, but the planet exploded in a collision billions of years ago.
The asteroids are in this space because Jupiter has more gravitational pull than the Sun.
The space has room for another planet, and the asteroids are slowly forming into a new planet.
- 17. Multiple Choice
What is the term for a meteoroid if it enters Earth's atmosphere?
a star
a comet
a meteor
a moon
- 18. Multiple Choice
Which diagram correctly shows the orbits of the Sun, Earth, and Moon in the geocentric model of the solar system?
- 19. Multiple Choice
The diagram shows a model.Which theory does this model best support?
special relativity
heliocentric
big bang
geocentric
- 20. Multiple Choice
Which diagram best describes the relationship between a galaxy, star, universe, and solar system?
- 21. Multiple Choice
Which picture shows the effect of the planet's gravity on the motion of the asteroid?
- 22. Multiple Choice
The picture shows a comet.
Based on where the tail is pointing, where is the Sun located?
to the left and down
to the left and up
to the right and down
to the right and up
- 23. Multiple Choice
The graph shows data on the most abundant gases on Mars.What would need to change in order for Mars's atmosphere to support human life?
The level of oxygen would need to increase, and the level of carbon dioxide would need to dramatically decrease.
The level of nitrogen would need to increase, and the level of argon would need to dramatically decrease.
The level of carbon monoxide would need to increase, and the level of oxygen would need to decrease
The level of carbon dioxide would need to increase, and the level of nitrogen would need to decrease.
- 24. Multiple Choice
The table below shows four planets with the same mass and their distance from the Sun.Among planets that have the same mass, the colder the surface, the thicker the planet's atmosphere. Which of these planets should have the thickest atmosphere.
w=19.2
x=5.2
y=1.5
z=0.4
w
x
y
z
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