
Mars Orbit and Retrograde Motion

Interactive Video
•
Physics, Science, Geography
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the observed motion of Mars in the sky over a two-year period?
It remains stationary.
It speeds up continuously.
It appears to slow down, stop, and move backward.
It moves in a straight line.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What causes the apparent retrograde motion of Mars?
Mars actually moves backward in its orbit.
Earth's orbit is slower than Mars'.
The different orbital speeds and distances of Mars and Earth.
Mars orbits the Sun in the opposite direction.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How often does Earth catch up and pass Mars in their orbits?
Every five years
Every two years
Every six months
Every year
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What visual effect is created when Earth passes Mars?
Mars' path looks like a loop.
Mars appears to disappear.
Mars becomes brighter.
Mars changes color.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How long does it take Mars to complete one orbit around the Sun?
730 days
365 days
687 days
500 days
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which planets also exhibit apparent retrograde motion?
Mercury and Venus
All planets except Earth
Only the outer planets
Only Mars
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it difficult to observe the retrograde motion of Mercury and Venus?
They are too far from Earth.
They do not exhibit retrograde motion.
They are always visible during the night.
They pass Earth during the daytime.
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