Flashcards
Planet Mars - astronomy questions
Mars is the .... planet from the Sun and the second-smallest planet in the Solar System after .....
Mars is often referred to as the "Red Planet" because the reddish .... prevalent on its surface gives it a reddish appearance.
Mars lost its magnetosphere
2.8 billion years ago
4 billion years ago
3 billion years ago
2 billion years ago
The mean surface pressure is only .... of that of Earth.
How many moons orbit Mars?
1
2
3
6
The atmosphere of Mars consists of about 96% ...., 1.93% .... and 1.89% .... along with traces of oxygen and water.
Mars orbital period equals:
176.446 days
589.922 days
686.971 days
382.487 days
Martian soil to be slightly :
acidic
alkaline
Liquid water cannot exist on the surface of Mars because
its frozen
there is no water
its deep beneath the surface
low atmospheric pressure
Does Mars have permanent polar caps?
yes, two
no
yes, one
Olympus Mons and related terrain are approximately .... km across.
Mars's average distance from the Sun is roughly
258 million kilometres
230 million kilometres
295 million kilometres
180 million kilometres
Day on Mars lasts:
23 hours, 59 minutes
25 hours, 6 minutes
24 hours, 39 minutes
24 hours, 18 minutes
Mars has two relatively small natural moons, Phobos (about .... km in diameter) and Deimos (about .... km in diameter), which orbit close to the planet.
Moon on this picture is:
Deimos
Phobos
Moon on this picture is:
Deimos
Olympus Mons is higher than Mount Everest about:
4 times
3 times
2 times
The Curiosity rover, which landed on Mars in
August 2012
January 2012
November 2011
May 2013
Oportunity Mars rover landed on planet's surface on:
January 25, 2004
December 4, 2005
May 12, 2004
April 25, 2003
Escape velocity from martian surface is:
8.29 km/s
5.027 km/s
3.012 km/s
11.26 km/s
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