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Sam’s Astronomy > Venus > Flashcards

Venus Flashcards

1
Q

What is the second planet from the Sun?

A

Venus

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2
Q

True or False: Venus is often referred to as Earth’s twin.

A

True

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3
Q

What is the primary component of Venus’s atmosphere?

A

Carbon dioxide

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4
Q

Fill in the blank: Venus has a __________ surface temperature, making it the hottest planet in the solar system.

A

high

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5
Q

What is the average surface temperature of Venus?

A

Approximately 465 degrees Celsius (869 degrees Fahrenheit)

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6
Q

Which greenhouse gas is responsible for Venus’s extreme heat?

A

Carbon dioxide

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7
Q

What is the length of a day on Venus compared to its year?

A

A day on Venus is longer than a year; it takes about 243 Earth days to rotate once and about 225 Earth days to orbit the Sun.

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8
Q

What type of clouds dominate Venus’s atmosphere?

A

Sulfuric acid clouds

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9
Q

True or False: Venus has no moons.

A

True

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10
Q

What is the surface pressure on Venus compared to Earth’s?

A

About 92 times that of Earth’s surface pressure.

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11
Q

Which spacecraft was the first to successfully land on Venus?

A

Venera 7

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12
Q

Fill in the blank: Venus rotates on its axis in a __________ direction compared to most planets.

A

retrograde

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13
Q

What is the primary reason Venus appears so bright in the night sky?

A

Its thick cloud cover reflects sunlight.

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14
Q

What is the name of the largest volcano on Venus?

A

Maat Mons

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15
Q

True or False: Venus has a significant magnetic field.

A

False

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16
Q

What is the main reason for the extreme greenhouse effect on Venus?

A

The high concentration of carbon dioxide in the atmosphere.

17
Q

What are the two main types of surface features found on Venus?

A

Volcanoes and tectonic structures.

18
Q

Fill in the blank: Venus is named after the Roman goddess of __________.

A

love and beauty

19
Q

What is the significance of the Venera program?

A

It was the first program to successfully land spacecraft on Venus and transmit data back to Earth.

20
Q

Which planet is often called the ‘Evening Star’ or ‘Morning Star’?

A

Venus

21
Q

What is the albedo of Venus?

A

Approximately 0.65, making it highly reflective.

22
Q

What kind of surface geology is predominantly found on Venus?

A

Volcanic plains and large volcanic structures.

23
Q

True or False: Venus experiences seasons like Earth.

A

False

24
Q

What is the significance of the radar mapping of Venus by the Magellan spacecraft?

A

It provided detailed maps of the planet’s surface and revealed its geological features.

25
Q

Fill in the blank: The thick clouds of Venus contribute to its __________ effect.

A

greenhouse

26
Q

What is the term for the cycle of atmospheric circulation on Venus?

A

Super-rotation

Sam’s Astronomy (17 decks)

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