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