Venus Flashcards
What is the second planet from the Sun?
Venus
True or False: Venus is often referred to as Earth’s twin.
True
What is the primary component of Venus’s atmosphere?
Carbon dioxide
Fill in the blank: Venus has a __________ surface temperature, making it the hottest planet in the solar system.
high
What is the average surface temperature of Venus?
Approximately 465 degrees Celsius (869 degrees Fahrenheit)
Which greenhouse gas is responsible for Venus’s extreme heat?
Carbon dioxide
What is the length of a day on Venus compared to its year?
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.
What type of clouds dominate Venus’s atmosphere?
Sulfuric acid clouds
True or False: Venus has no moons.
True
What is the surface pressure on Venus compared to Earth’s?
About 92 times that of Earth’s surface pressure.
Which spacecraft was the first to successfully land on Venus?
Venera 7
Fill in the blank: Venus rotates on its axis in a __________ direction compared to most planets.
retrograde
What is the primary reason Venus appears so bright in the night sky?
Its thick cloud cover reflects sunlight.
What is the name of the largest volcano on Venus?
Maat Mons
True or False: Venus has a significant magnetic field.
False
What is the main reason for the extreme greenhouse effect on Venus?
The high concentration of carbon dioxide in the atmosphere.
What are the two main types of surface features found on Venus?
Volcanoes and tectonic structures.
Fill in the blank: Venus is named after the Roman goddess of __________.
love and beauty
What is the significance of the Venera program?
It was the first program to successfully land spacecraft on Venus and transmit data back to Earth.
Which planet is often called the ‘Evening Star’ or ‘Morning Star’?
Venus
What is the albedo of Venus?
Approximately 0.65, making it highly reflective.
What kind of surface geology is predominantly found on Venus?
Volcanic plains and large volcanic structures.
True or False: Venus experiences seasons like Earth.
False
What is the significance of the radar mapping of Venus by the Magellan spacecraft?
It provided detailed maps of the planet’s surface and revealed its geological features.
Fill in the blank: The thick clouds of Venus contribute to its __________ effect.
greenhouse
What is the term for the cycle of atmospheric circulation on Venus?
Super-rotation
