Question at position 5 Which body experiences the greatest change between its actual day temperature and actual night temperature?EarthVenusPlutoMarsMercuryClear my selection单项选择题
A
Earth
B
Venus
C
Pluto
D
Mars
E
Mercury

Question

Question at position 5 Which body experiences the greatest change between its actual day temperature and actual night temperature?EarthVenusPlutoMarsMercuryClear my selection

BlackTom AI · Accepted Answer

Mercury has the largest actual day–night temperature change because it has almost no atmosphere to retain heat and receives intense sunlight on its sunlit side.

1) Relevant concepts
- Diurnal temperature range depends on solar heating, thermal inertia, rotation period, and presence of an atmosphere. A thick atmosphere and high thermal inertia distribute and retain heat, reducing day–night swings. A negligible atmosphere produces large swings because the surface radiates heat away rapidly into space.

2) Step-by-step reasoning
- Mercury: essentially no atmosphere and slow rotation, so the sunlit side becomes extremely hot while the dark side radiates heat to space and becomes extremely cold.
- Venus: very thick CO2 atmosphere and high surface pressure produce strong greenhouse/stirring effects; temperature is nearly uniform between day and night.
- Mars: thin atmosphere so larger swings than Earth/Venus but much smaller than Mercury because Mars receives much less solar flux.
- Pluto: extremely cold overall and a tenuous atmosphere (when present) so absolute temperatures are very low but diurnal changes are small relative to Mercury.
- Earth: moderate atmosphere and oceans moderate day–night differences; deserts can have larger swings but nowhere near Mercury’s extremes.

3) Calculations / intermediate steps
- Mercury typical daytime surface temperature ≈ +430 °C.
- Mercury typical nighttime surface temperature ≈ −180 °C.
- Diurnal change = 430 − (−180) = 430 + 180 = 610 °C.

4) Why the correct answer is correct
- The calculated Mercury diurnal range (~610 °C) is far greater than the ranges for the other bodies: Venus (~≤10 °C), Mars (~100–150 °C at most), Earth (typically tens of °C), Pluto (small tens of °C at most). Mercury’s near-absence of atmosphere and direct solar heating cause the largest actual day–night temperature change.

5) Why the other options are incorrect
- Venus: thick atmosphere and slow winds distribute heat, producing very small day–night differences.
- Earth: atmosphere and oceans moderate temperatures; typical diurnal ranges are tens of degrees, not hundreds.
- Pluto: extremely cold but small diurnal variation because of low insolation and partial atmosphere; absolute temperatures are low but change is small.
- Mars: thin atmosphere gives larger swings than Earth/Venus, but still far smaller than Mercury’s ~610 °C difference.

6) Conclusion / confirmation
- The final answer is Mercury, which matches the provided correct answer.

Question at position 5 Which body experiences the greatest change between its actual day temperature and actual night temperature?EarthVenusPlutoMarsMercuryClear my selection单项选择题

类似问题

Which planet has the widest range in temperatures between the day and night side?

Which planet experiences the greatest change between its actual day temperature and actual night temperature?

How did Egyptian culture and governance change during the Ptolemaic period compared to the pharaonic period?

Name the Supreme Court decision that removed financial constraints on PACs.

Political scientists Joshua Kalla and David Broockman find that senior policy makers made themselves available to _____ between three and four times more often than they did to constituents.

Name the political scientist who argues that parties are designed to serve the needs of ambitious politicians (namely candidates and officeholders).

Name the political scientist who said this famous quote about the problems of pluralism: “The flaw in the pluralist heaven is that the heavenly choir sings with a strong upper-class accent.”

What is the name of the third party candidate in 2000 who was not allowed to participate in the presidential debates? Hint: We watched a video clip with him in class.

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单