Pg: __________
Date: ____________
Gravity Graph and Planet Data
Probe 2 has twice the mass of Probe 1.
Radii= plural of radius
newton= measurement of the force of gravity.
There are 4.4 pounds in a newton
1. How would you describe the force of gravity on probes 1 and 2 at a distance of 4 and 5 radii from Mars?
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2. What is happening to the force of gravity on probe 1 as it gets closer to the surface of Mars?
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3. What is happening to the force of gravity on probe 2 as it gets closer to the surface of Mars? _____________
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Pg: __________
Date: ____________
Visit the page http://www.exploratorium.edu/ronh/weight/index.html
Choose one volunteer from the group and enter his/her weight where it says “ENTER YOUR WEIGHT
HERE” Everyone needs to copy the data onto their paper.
What is your weight on the following planets?
Earth: ______________
Jupiter: ____________
The sun: ______________
The moon: ____________
Mercury: _____________
Pluto: ______________
The sun and Jupiter are much larger than Earth.
The moon and Mercury are much smaller than Earth.
1. How does your weight on Earth compare to that of the sun and Jupiter?
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2. How does your weight on Earth compare to that of the moon and Mercury?
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3. Is Pluto larger or smaller than our moon? How can you tell from this website?
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CONCLUSION
Based on the data from the probes and the data from the different planets, what two factors determine the
force of gravity between two objects? _________________________________________________________
____________
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