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- 1. Multiple Choice
Many years ago, people believed that the Earth was the center of the solar system because from Earth, it looks as if the stars and sun
A. move more quickly than the Earth.
B. geocentric
C. are much smaller than the Earth.
D. revolve around the Earth.
- 2. Multiple Choice
The ___ model was first summarized by Aristotle and Plato in the 4th Century BC and later updated by Ptolemy, a Greek philosopher, about 100-200 AD. In this model the Earth is motionless at the center of the universe. *
A. gravocentric
B. geocentric
C. heliocentric
D. solarcentric
- 3. Multiple Choice
Over time, scientists have changed their model of our solar system. It has transformed from?
A. an Earth-centered to a moon-centered model.
B. a sun-centered to an earth-centered model.
C. an Earth-centered to a sun-centered model.
D. a moon-centered to an earth-centered model.
- 4. Multiple Choice
Looking through his telescope, Galileo observed that Jupiter had a set of moons, much like Earth does. The moons revolved around the planet. This disproved the idea that all objects in space revolved around Earth. This means that?
A. scientific knowledge can be revised if better evidence comes to light.
B. scientific knowledge began only after the telescope was invented.
C. scientific knowledge is almost always incorrect.
D. scientific knowledge can only be gained by using sophisticated instruments.
- 5. Multiple Choice
The ___ model is a model proposed by Nicholas Copernicus, a Polish cleric, around 1500. His model proposed that all the planets revolve around the sun and the moon revolves around the Earth?
A. big bang
B. geocentric
C. heliocentric
D. gravocntric
- 6. Multiple Choice
Which statement BEST describes the position of the Earth in the solar system?
A. The Earth is the planet closest to the sun.
B. The Earth is closer to the sun than Jupiter.
C. The Earth is the planet farthest from the sun.
D. The Earth is farther from the sun than Jupiter.
- 7. Multiple Choice
Which statement is true about the solar system?
A. The inner planets have more moons than the outer p
B. The inner planets are gaseous; the outer planets are terrestrial.
C. The inner planets orbit at a slower rate than the outer planets.
D. The inner planets are more dense; the outer planets are less dense.
- 8. Multiple Choice
Which inner planet is closest to the sun?
A. Earth
B. Mars
C. Mercury
D. Venus
- 9. Multiple Choice
Earth has several ideal features which enable it to support life. MOST important is?
A. the gravitational force on Earth.
B. the existence and amount of liquid water on Earth’s surface.
C. the relationship between Earth and its moon.
D. the existence of the tectonic plates.
- 10. Multiple Choice
Earth seems to be the only planet in our solar system that can support life. ALL BUT ONE of these is a reason why life is found only on Earth. That is?
A. a moderate climate.
B. the presence of liquid water.
C. the right mixture of gases in the atmosphere.
D. it has gravity to hold an atmosphere in place.
- 11. Multiple Choice
Gravity on the moon is about 1/6th the gravity felt on the Earth. This is because?
A. the moon is so far away from Earth.
B. the moon is much less massive than the Earth.
C. the Earth has a molten core and the moon doesn’t.
D. the moon is so much further from the sun than the Earth.
- 12. Multiple Choice
Almost everything in the universe orbits around a central object. The planets orbit the sun and the moons orbit the planets. The factors MOST responsible for these orbits?
A. mass and distance.
B. gravity and inertia.
C. stronger wave forces.
D. electromagnectic forces.
- 13. Multiple Choice
The sun has more gravity than the other planets in our solar system because the sun is?
A. hotter.
B. more massive.
C. made of plasma.
D. undergoing fusion.
- 14. Multiple Choice
What would happen to the planets if the sun’s gravitational force were to suddenly disappear?
A. They will stop rotating.
B. They will fly away in straight lines.
C. They will start moving toward the sun.
D. They will stop moving completely.
- 15. Multiple Choice
Which statement about the Milky Way is true?
A. It is the only galaxy.
B. It is one of two galaxies.
C. It is one of ten galaxies.
D. It is one of many galaxies.
- 16. Multiple Choice
Which of the following are nicknamed “shooting stars”?
A. interplanetary dust
B. asteroids
C. meteors
D. comets
- 17. Multiple Choice
A meteorite is DIFFERENT from a meteor mainly because a meteorite?
A. has hit the Earth’s surface.
B. enters the Earth’s atmosphere.
C. has a nucleus made of snow and rock.
D. is found in orbit between Mars and Jupiter.
- 18. Multiple Choice
Characteristics Sometimes called a “dirty snowball” Has a hydrogen cloud Has a coma and a nucleus is invisible except when near the sun This above is a description of a(n)?
A. asteroid.
B. comet.
C. meteor.
D. star.
- 19. Multiple Choice
_____ form a belt between Mars and Jupiter?
A. Asteroids
B. Comets
C. Meteors
D. Stars
- 20. Multiple Choice
What is the best way to discover if there is water on the surface of Mars?
A. Send space probes to Mars to study the surface.
B. Study the moon’s surface, since it is similar to that of Mars.
C. Observe the color of Mars to see if there are any traces of blue.
D. Study meteorites on Earth that are believed to have been rocks from Mars.
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