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
3 billion years ago
4 billion years ago
2.8 billion years ago
2 billion years ago
The mean surface pressure is only .... of that of Earth.
How many moons orbit Mars?
3
1
2
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:
686.971 days
176.446 days
382.487 days
589.922 days
Martian soil to be slightly :
alkaline
acidic
Liquid water cannot exist on the surface of Mars because
its frozen
its deep beneath the surface
low atmospheric pressure
there is no water
Does Mars have permanent polar caps?
no
yes, one
yes, two
Olympus Mons and related terrain are approximately .... km across.
Mars's average distance from the Sun is roughly
230 million kilometres
258 million kilometres
295 million kilometres
180 million kilometres
Day on Mars lasts:
23 hours, 59 minutes
24 hours, 18 minutes
24 hours, 39 minutes
25 hours, 6 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:
Phobos
Deimos
Moon on this picture is:
Deimos
Olympus Mons is higher than Mount Everest about:
2 times
3 times
4 times
The Curiosity rover, which landed on Mars in
May 2013
November 2011
August 2012
January 2012
Oportunity Mars rover landed on planet's surface on:
December 4, 2005
January 25, 2004
May 12, 2004
April 25, 2003
Escape velocity from martian surface is:
8.29 km/s
3.012 km/s
5.027 km/s
11.26 km/s
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