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29 Cards in this Set
- Front
- Back
The direction of the rotation of Venus is exceptional because it is in a ________ direction. |
Retrograde |
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While it has some high volcanoes, most of Venus is relatively ________ in elevation. |
Low |
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The most effective wavelengths to see through the clouds of Venus to the surface are ________. |
Radio Waves |
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The Russian ________ probes are the only ones to successfully land on Venus. |
Venera |
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The Greenhouse effect on Venus is due to ________ in its atmosphere. |
Carbon Dioxide |
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Venus' high surface temperature is due to the ________ effect. |
Green house |
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The planet ________ has the least variation in temperatures on the surface between day and night. |
Mercury |
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The atmosphere of Venus is about 95% ________. |
Carbon Dioxide and some oxygen |
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The lack of water on Venus is the result of ________ of the water molecules into its component atoms by solar ultraviolet radiation. |
Dissociation |
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Since its density is similar to ours, we think that Venus too has a core of ________. |
Iron |
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At closest approach Venus is about how far from Earth? |
0.3 AU |
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Venus orbits the Sun in 225 days. How long does it take to rotate on its axis? |
243 Days |
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Why is it reasonable to conclude that the internal structure and evolution of Venus are basicallyEarthlike? |
Similar masses and sizes |
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8) Through radar observations it was found that Venus’ rotation: Page Ref: 9.2 |
Rotation on its axis retrograde |
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Why does Venus appear so bright to the eye? |
Planets cloud cover is highly reflective |
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Earth and Venus are often called sister planets; in which ways are they most alike? |
Size, density, and surface gravity |
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The surface of Venus can be observed with: |
Radar observations from arecibo |
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The synodic period of Venus is the time it takes for: |
3.5 yrs |
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Our most detailed maps of Venus come from: |
The magellan space probe |
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Which of the following characterizes a shield volcano? |
It sits above a hot spot in the planets mantle |
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Which statement is true of Venus' surface? |
They are two continent sized uplands |
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A surprise from the Pioneer Venus photos was that: |
The clouds rotate around the planet in only 4 days very unlike the slow surface rotation |
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What percentage of the surface of Venus could be characterized as continental-sized highlands? |
less than 10% |
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What is thought to have caused the craters on Venus? |
Most are volcanic in origin, some are due to meteoric impacts |
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The largest volcanic structures on Venus are called: |
Coronae |
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The only spacecraft to successfully land on Venus were: |
Russian Veneras |
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What is the result of the Greenhouse effect on the surface environment of Venus? |
Raised the surface temp by hundreds |
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What is the composition of the clouds of Venus? |
Sulferic acids |
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The absence of a magnetic field on Venus probably stems from its: |
Slow rotation |