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Universal Law of Gravitation

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Lesson about Universal Law of Gravitation

Lesson about Universal Law of Gravitation

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  • 1. Tuesday October 24
    • Objective: SWBAT explain gravitational force changes with mass and distance.
    • A-Team:
    • Homework: Read pg. 352-354 in book, Blood Pressure in Space wksht
    • Catalyst: What’s one thing you’ve decided to do in order to reach your big goal this quarter?
  • 2.
    • Time is up
    • (No. No complaining.
    • Five minutes every day.)
  • 3. Universal Law of Gravitation
    • Before we start… today I’ll give you a hint
    • This is the moment where you start taking some notes.
    • Today you will do that on the front side of your worksheet.
  • 4. Universal Law of Gravitation
    • Gravity is a universal force
    • There’s a fancy equation we need to know about
    The force Gravitational Constant Mass of object 1 Mass of object 2 A distance apart from each other in meters (and squared)
  • 5. 4 things to know
    • 1. Gravity is a force, and things that are forces are measured in
    Newtons
  • 6.  2. G is a constant. WARNING: It’s an ugly looking number. Example of another constant that you know?
  • 7. 4 things to know
    • 3. As mass increases, force increases
    • This makes sense if we look at the equation
    If the number on the top part of the fraction gets bigger, then the whole answer is going to be bigger
  • 8. 4 things to know
    • 3. As mass increases, force increases
  • 9. 4 things to know
    • 3. As mass increases, force increases
  • 10. 4 things to know
    • 3. As mass increases, force increases
  • 11. 4 things to know
    • 4. As distance increases, force decreases
    • This makes sense if we look at the equation
    If the number on the bottom part of the fraction gets bigger, then the whole answer is going to be smaller
  • 12. 4 things to know
    • 4. As distance increases, force decreases
  • 13. 4 things to know
    • 4. As distance increases, force decreases
    Both go to Turner and get to sit next to each other in class Close together, strong attraction
  • 14. 4 things to know
    • 4. As distance increases, force decreases
    He goes to Roosevelt and she goes to Turner Further away, much less attraction
  • 15. Let’s recap
    • Gravity is a force measured in Newtons
    • G in the equation is a constant
    • As mass increases, force increases
    • As distance increases, force decreases