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Gravitational Forces
By Trina King
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Last updated over 5 years ago
20 questions
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Note from the author:
pHet Simulation to explore orbits and gravitational forces
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Question 1
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WARM-UP:
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Question 2
2.
What do the blue arrows indicate?
Question 3
3.
Compare the size of Earth and the Sun.
Question 4
4.
What happens to the blue arrows when you make this adjustment?
Question 5
5.
What does the gray line represent?
Question 6
6.
Which object orbits the other?
Question 7
7.
Compare the size of the Sun, Earth, and Moon.
Question 8
8.
What does the purple line represent?
Question 9
9.
Why does Earth have a circular path while the Moon has a "flower-shaped" path?
Question 10
10.
Compare the size of Earth and the Moon.
Question 11
11.
Which object orbits around the other?
Question 12
12.
What do you observe about its motion?
Question 13
13.
Increase the mass of the Moon to its maximum. What do you observe about the motion of Earth now?
Question 14
14.
What do you observe about the motion of the Earth-Moon system?
Question 15
15.
Why do you think this movement is happening?
Question 16
16.
Compare the size of Earth and the satellite.
Question 17
17.
Which objet orbits around the other?
Question 18
18.
Turn off Gravity. What do you observe?
Question 19
19.
How do you think astronomers can determine the gravitational force between two celestial objects without measuring it directly?
Question 20
20.
What do you think this means?
