Universal Gravitation Questions by S6y49rm

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									Universal Gravitation Class Exercises                                                            Physics

    Body               Mass (kg)       Radius (km) Orbital Radius (km)             Orbital Period
                                 30
    Sun                 1.99 x 10         696,000
    Mercury             3.30 x 1023         2440               57,895,000               87.96 days
    Venus               4.87 x 1024         6052              108,161,000               224.7 days
    Earth               5.97 x 1024         6378              149,600,000              365.26 days
        Moon            7.35 x 1022         1738                 384,000                27.32 days
    Mars                6.42 x 1023         3397              227,392,000              686.98 days
    Jupiter             1.90 x 1027        71492              778,300,000              11.86 years
        Io              8.89 x 1022         1815                 422,000                 1.77 days
    Saturn              5.69 x 1026        60268             1,427,000,000             29.46 years
        Titan           1.34 x 1023         2575                1,221,830               15.95 days
    Uranus              8.66 x 1025        25559             2,884,000,000             84.01 years
    Neptune             1.03 x 1026        24764             4,521,000,000             164.8 years
    Pluto               1.50 x 1022         1151             5,959,000,000             248.6 years
        Charon          7.35 x 1020          600                  19,700                 6.39 days
1. How strong is the gravitational force between             and                   ?




2. How strong is the gravitational force between two 0.5 kg oranges sitting 0.2 meters apart (center to
center) on a table?




3. How strong is the gravitational force between the Earth & the Sun?




4. How strong is the gravitational force between the Earth & the Moon?
5. How strong is the gravitational force between the Earth & Jupiter, when they are at the closest points
in their orbits? (If you need help finding the distance between them, draw a picture showing them as
close as they come to each other.)




6. a) Convert your weight from lbs to Newtons. (1 lb = 4.45 N)




b) Use the universal law equation for the force of gravity here on earth to figure out your mass.




c) Based on Newton’s Law of Universal Gravitation, how much would you weigh on Mars?




d) How much would you weigh on Uranus?

								
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