Physics 12

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Physics 12

• Newtonian Physics 10
• Mr. Jean

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The plan

• Video clip of the day
• Keplers equations
• Universal gravitational constant
• Universal gravitational constant examples

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Newtons Law of Universal Gravitation

• Fg force of gravity in newtons (N)
• m1 first mass in kilograms (Kg)
• m2 second mass in kilograms (Kg)
• r distance between centers of mass in meters
• G Universal Gravity Constant (next slide for
  units)

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• Satellites in space
• A satellite in space moves around a heavy body.
  To keep the satellite from smashing back into the
  Earth (or planet it is orbiting), scientists set
  the force of gravity equal to the centripetal
  force.
• Fg Fc

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Planetary Information Sheets

• Complete the first 4 for each sheet.
• Mercury
• Venus
• Earth
• Mars

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Part 1
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Part 2
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Part 3