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15 Cards in this Set
- Front
- Back
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How does the Sun's mass compare with that of the planets? It is about as massive as all the planets combined. It is a thousand times more massive than Earth It is a hundred times more massive than all the planets combined. It is a thousand times more massive than all the planets combined. It is a hundred times more massive than Earth. |
It is a thousand times more massive than all the planets combined. |
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Which planet has the highest average surface temperature, and why? Mars, because of its red color Mercury, because of its dense carbon dioxide atmosphere Mercury, because it is closest to the Sun Jupiter, because it is so big Venus, because of its dense carbon dioxide atmosphere |
Venus, because of its dense carbon dioxide atmosphere |
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Which planet, other than Earth, has visible water ice on it? Mars Mercury Jupiter Venus the Moon |
Mars |
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Which of the following is farthest from the Sun? an asteroid in the asteroid belt Pluto a comet in the Oort cloud Neptune a comet in the Kuiper belt |
a comet in the Oort cloud |
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Which planet has a ring system? Neptune Jupiter Saturn Uranus all of the above |
all of the above |
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What is aerobraking? the gradual decrease of speed as a spacecraft leaves the solar system the use of a planetary atmosphere to redirect a spacecraft to another planet the destruction of a spacecraft by the intense pressure as it descends into the atmosphere the technique of using a planetary atmosphere to change the orbit of a spacecraft the controlled landing of a spacecraft on a planetary surface |
the technique of using a planetary atmosphere to change the orbit of a spacecraft |
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Which of the following statements is not an observed pattern of motion in our solar system? All planets orbit the Sun in the same direction. Most planets rotate in the same direction in which they orbit. Almost all moons orbit their planet in the same direction as the planet's rotation. Most planets orbit at the same speed. Most planetary orbits lie nearly in the same plane. |
Most planets orbit at the same speed. |
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Which of the following is not a pattern of motion in our solar system? Large planets all have many moons orbiting them. Planets all orbit in the same direction Planets all orbit the same direction as the Sun's spin. Planets all rotate in the same direction. |
Planets all rotate in the same direction. |
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Which of the following is not an exception to the general patterns in the solar system? the counterclockwise rotation of Venus the large size of Earth's Moon the extreme axis tilt of Uranus the retrograde rotation of Triton around Neptune the rings of Saturn |
the rings of Saturn |
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Which of the following is not a characteristic of the inner planets? They all have solid, rocky surfaces. They are relatively smaller than the outer planets. They have very few, if any, satellites. They all have substantial atmospheres. Their orbits are relatively closely spaced. |
They all have substantial atmospheres. |
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Which of the following is not a characteristic of the outer planets? They have very few, if any, satellites. They are primarily made of hydrogen and helium. They are all large balls of gas. They all have rings. Their orbits are separated by relatively large distances. |
They have very few, if any, satellites. |
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How do asteroids differ from comets? Asteroids are made of icy material and are denser than the comets, which are more rocky. Asteroids are made of icy material and are less dense than the comets, which are rockier. Asteroids and comets are both made of rocky and icy material, but asteroids are smaller in size than comets. Asteroids are rocky bodies and are denser than the comets, which are made of icy material. Asteroids are rocky bodies and are less dense than the comets, which are made of icy material. |
Asteroids are rocky bodies and are denser than the comets, which are made of icy material. |
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Where are most of the known asteroids found? between the orbits of Mars and Jupiter between the orbits of the jovian planets in the Kuiper belt between the orbits of the terrestrial planets in the Oort cloud |
between the orbits of Mars and Jupiter |
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The planet closest in size to Earth is Venus. Mercury. the Moon Mars. Pluto. |
Venus. |
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Which is the densest planet in the solar system? Earth Jupiter Venus Mars Mercury |
Earth |
