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- 1. Multiple ChoiceA large cloud of gas and dust in interstellar space; the predecessor to stars...ConstellationBlack holeNebulaGalaxy
- 2. Multiple Choice
In the diagram given, what happens as we move to the left?Stars Get LargerStars get ColderStars get hotter - 3. Multiple ChoiceCompared to the rest of the stars, our sun is considered...Extremely Large and ColdSmall with a medium temperatureMedium size with medium temperature
- 4. Multiple ChoiceAll stars start as gas and dust in a(n)nebulablack holered giantblack dwarf
- 5. Multiple ChoiceAfter a supergiant, a high mass star explodes and forms asupernovared giantblack holeplanetary nebula
- 6. Multiple Choice
A system of stars, gas, dust, and dark matter bound together by gravity is called -
an asteroid
a moon
a galaxy
a nebula
- 7. Multiple Choice
Which of the following best describes a star? A star is a celestial body -
composed of rock and metal with a very high density.
that is too big to be an asteroid, but too small to be a planet.
that rotates on an axis and revolves around the Sun.
composed of gases that emit light due to nuclear reactions.
- 8. Multiple Choice
Which of the following is an accurate description of the relationship between components of the universe?
Stars always contain galaxies.
Galaxies contain many stars.
Stars contain several nebulae.
Nebulae contain many galaxies.
- 9. Multiple Choice
The universe has many different components. Which list places four components of the universe in the most likely order from smallest to largest?
Planets, stars, nebulae, galaxies
Planets, stars, galaxies, nebulae
Nebulae, stars, planets, galaxies
Galaxies, stars, planets, nebulae
- 10. Multiple Choice
The Milky Way galaxy is described as a disk of stars orbiting a central point on the disk. Which of these best explains why people on Earth cannot see the entire shape of the Milky Way?
Earth is a part of this galaxy.
Many more stars exist outside the galaxy
The stars in the center of the galaxy are extremely small
The center of the galaxy consists of a dense cluster of stars
- 11. Multiple Choice
A student learns that the sun is classified as a medium-size star and that many stars are much bigger and brighter. However, the student observes that other stars look very dim, even through a telescope.
Why do other stars look much dimmer than the sun?
The sun appear yellow, which is more visible than other colors.
The sun is much closer to Earth than other stars are
Other stars are made up of different gases than the sun is.
As light from other stars travels through space, it gets reflected.
- 12. Multiple Choice
A student makes a model of the sun-Earth system by swinging a ball around her head. Using this model, the student is trying to explain how Earth stays on a path around the sun.
The student explains that this path is the result of -
the magnetic attraction between Earth and the sun
potential energy stored in Earth that originated in the sun
the gravitational attraction between the sun and Earth
electromagnetic energy from the sun pulling on Earth
- 13. Multiple Choice
An object will continue moving in a straight line unless it is acted on by an unbalanced force. Which of the following best explains Earth's motion?
There is no unbalanced force acting on Earth because space is empty and nothing touches Earth.
The gravitational force pulling Earth toward the sun is equal and opposite to the force pulling the sun toward Earth, so there is no unbalanced force acting on Earth.
The sun moves in an elliptical orbit around Earth, and the sun's gravity pulls Earth along.
Earth moves in an elliptical orbit around the sun because the gravitational force of the sun attracts Earth.
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