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Space creed
Chapters 15 & 16
| Question | Answer |
|---|---|
| Most of the Moon's craters were produced by ___. | the impact of debris (meteoroids) |
| Which of the following is most likely to be associated both with the impact craters and with volcanic calderas that originate by collapse? | landslides and other mass wasting movements along the walls of the depression |
| Which of the following statements concerning ring satellites of the planets is true? | consist of concentrations of particles generally smaller than 10 meters in diameter |
| The high temperatures of this planet have been attributed to the greenhouse effect. | Venus |
| The belt(orbit) of the asteroids is located between | Jupiter and Mars |
| _______ meteorites are thought to be analogous in composition to Earth's core. | Iron |
| Which one of the terrestrial planets has a surface landscape similar to that of the older areas of the Moon? | Mercury |
| Which one of the following is not found on Mars? | H2O-rich atmosphere |
| The first modern astronomer to propose a Sun-centered universe was ______. | Nicolaus Copernicus |
| The smallest planet in the solar system is | Mercury |
| The _______ explains how our solar system probably formed from a giant cloud of gases and dispersed sold particles. | nebular hypothesis |
| ______refers to th bright head of a comet. | Coma |
| The surface features of _____ are known only through satellite radar mapping. | Venus |
| Galileo observed several features using the telescope. Which one of the following did he NOT discover? | the two moons of Mars |
| In the Ptolemaic (Greek) model of the universe the _____. | Earth was in the center of the universe |
| _____ has a hot, turbulent atmosphere dominated by carbon dioxide. | Venus |
| Carbon Dioxide is the major gas in the atmosphere of Venus. | True |
| Which one of the following is not true of Jupiter? | a rotational speed slower than Mercury |
| ____, a moon orbiting Jupiter, has an unusually smooth uncratered, ice-covered surface. | Europa |
| Which of these lunar features is the oldest? | lunar highlands |
| This scientist was the first to use the telescope in astronomy. | Galileo |
| As the solar system was forming, _____came closest to undergoing nuclear fusion and becoming a second sun. | Jupiter |
| ____ is the principal gas in the Venusian atmosphere and also a minor component of the atmospheres of Earth and Mars | Carbon Dioxide |
| ____ has the great, dark spot on its surface. | Neptune |
| One of the discoveries which led to the modern view of the solar system was that the orbits of the planets are _____. | ellipses |
| According to the Ptolemaic (Greek) maodel of the universe, how many "heavenly" bodies could be observed wandering along the background of stars? | seven |
| Compared to the density of liquid water (1 gram/cc), the appropriate range in average densities of the terrestrial planets is ____. | 4 to 6 grams/cc |
| This scientist determined the nature of the forcees that kept the planets in their orbits. | Sir Isaac Newton |
| Three laws of planetary motion were discovered by____. | Johannes Kepler |
| The apparent westward drift of the planets compared to the background stars is called ____. | retrograde motion |
| One of the most common units used to express stellar distance is the ____. | Light-year |
| The distance to the stars can be determined from ____. | stellar parallax |
| Hubble's law states that galaxies are receding from us at a speed that is proportional to their ___. | Distance |
| The discovery that the universe appears to be expanding led to a widely accepted theory called ______. | The Big Bang Theory |
| Based on the observed red shifts in the spectral lines of distant galaxies, astronomers conclude that ______. | the universe is expanding |
| Which one of the objects listed below has the largest size? | galaxies |
| The final stage for a star which is as massive as the Sun is a | black dwarf |
| The final stage in the evolution of the most massive stars is a ______. | black hole |
| A star in which light cannot escape because of the immense gravitational pull at its surface is called a _____. | black hole |
| The Sun belongs to this class of stars. | main-sequence star |
| Which color stars have the coolest surface temperature? | red |
| Most stars are in this stage of evolution. | main-sequence star |
| This property of a star can be detemined from its color. | surface temperature |
| These stars produced during a supernova event. | black hole |
| Which main-sequence stars are the most massive? | blue |
| The measure of a star's brightness is called the _______. | magnitude |
| The most dense stars known to exist are | black holes |
| Possibly the most cataclysmic event to occur in nature is ____. | supernova |
| When a main-sequence star has exhausted the fuel in the inner region, it becomes a ____. | red giant |
| Which main-sequence stars are the least massive | red |
| Our galaxy is called the _______. | Milky Way Galaxy |
| The point in stellar evolution when a star has used up all its fuel and is radiating away its remaining thermal energy as light is the ________ stage. | white dwarf |
| The Sun is considered an average star. | true |
| Which color stars have the highest surface temperature? | blue |
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creed21
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