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Contemporary's GED Science
Robert Mitchell

Space Science

Chapter Review Quiz


Choose the best answer to each question. You may refer to pages 369–384 in Contemporary’s GED Science if you need additional help. When you have finished the quiz, click on Submit Answers to receive feedback and results. You may also choose to e-mail your results to your instructor.


Which of the following statements about space science is NOT true?
Need a Hint?
A)Space science is one of the oldest sciences.
B)Space science includes the study of all celestial bodies in the universe.
C)Space science does not have any relationship to other fields of science.
D)The study of space science has led to remarkable achievements during the latter part of the twentieth century.
E)Space scientists hope to gain a better understanding of Earth’s creation.

Which of the following is the best description of the solar system?
Need a Hint?
A)The Sun is at the center, and the planets and asteroids orbit around it.
B)Earth is at the center, and the Moon, Sun, and other planets orbit around it.
C)The Moon is at the center, and Earth, the Sun, and other planets orbit around Earth.
D)The Sun is at the center of the solar system, and Earth and the other planets are stationary in the sky at a fixed distance from it.
E)The planets are in a group at the center of the solar system, and the Sun orbits the entire group.

What is a galaxy?
Need a Hint?
A)a group of planets that are in orbit around the Sun
B)a distant star that has planets in orbit around it
C)two stars that are in orbit around one another
D)a large group of stars that are located together in one part of the universe
E)the empty space between large groups of stars

What is the main force that holds the universe together?
Need a Hint?
B)electrostatic force
C)magnetic force
D)mechanical force

How is a star created?
Need a Hint?
A)The leftovers of an exploding blue star collapse due to gravitational force.
B)A comet melts while approaching another star.
C)Two planets collide and break apart.
D)A planet overheats due to radioactive substances in its core.
E)A cloud of interstellar dust and gas contracts due to gravitational force.

About how old is the solar system?
Need a Hint?
A)1.5 million years
B)70 million years
C)4.6 billion years
D)15 billion years
E)2 trillion years

How are chemical elements distributed throughout the solar system?
Need a Hint?
A)Planets close to the Sun tend to be made up of heavier elements, while planets farther away tend to be made up of lighter elements.
B)Large planets tend to be made up of the heaviest elements.
C)Small planets tend to be made up of the lightest elements.
D)Planets closest to the Sun tend to be made up of the lightest elements.
E)Planets with the greatest number of moons tend to be made up of the lightest elements.

According to scientists, what is most likely to be the ultimate fate of Earth?
Need a Hint?
A)Earth will eventually leave its present orbit around the Sun and move off into space.
B)Earth will be engulfed by an expanding Sun as the Sun goes through its life cycle.
C)Earth will heat up because of radioactive material in its own core and become a star.
D)Earth will slowly move farther away from the Sun until it becomes a frozen planet near the edge of the solar system.
E)Earth will slowly move closer to the Sun until, at last, it moves into the Sun and melts.

What is the big bang theory?
Need a Hint?
A)a description of the cycles of expansion and contraction of the universe that may occur as the universe goes through its life cycle
B)a description of the formation of planets around stars, which explains how Earth and other planets formed around the Sun
C)a theory about universes that may exist outside of our own
D)a theory about the birth of the universe in which the universe began as a very compact mass of material that exploded and rapidly expanded
E)the belief that each time a star explodes, a big bang is heard throughout the universe

What is the flat universe model?
Need a Hint?
A)a model in which the universe never changes
B)a model in which gravitational force becomes weaker over time, eventually disappearing as the universe nears the end of its life cycle
C)a model in which most objects in the universe are actually flat in shape and not spherical in shape like Earth, the Moon, and the Sun
D)a model in which the universe is mainly made up of empty space between large groups of stars
E)a model in which the expanding universe will eventually reach a size and then stay at that size, neither expanding nor contracting