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Andrea gravity


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Andrea gravity

  1. 1. Gravity<br />By: Andrea Meyer 7D<br />
  2. 2. Who Created the Law of Gravity?<br />Isaac Newton was the creator of the Law of Gravity, but he was not the first to think of the topic.<br />Aristotle, a philosopher from ancient Greece, thought that a ten pound weight could fall ten times faster than a one pound weight.<br />Sir Isaac Newton<br />Aristotle<br />
  3. 3. Continued<br />Many centuries later, Galileo took two weights one of ten pounds and one of one pound and dropped them at the same time from the top of the Leaning Tower of Pisa. They both seemed to fall at the same speed and Galileo proclaimed that all objects fall at the same speed.<br />There was no way to accurately measure the speed of the two weights so he could never prove that but Galileo clearly disproved the hypothesis made by Aristotle.<br />
  4. 4. Continued<br />Sir Isaac Newton was a English Scientist from the late 1600’s who named the Law of Gravity.<br />Newton was sitting under a tree when he saw an apple fall from the tree. That started him thinking about gravity.<br />He used theory about gravity to try and explain how the moon revolves around the earth. <br />
  5. 5. How does Gravity Affect Us Today<br />Since the idea about gravity was made it hasn't left our lives at any moment of the day.<br />Gravity is the reason that when we jump up we come right back down. Gravity is the force that keeps you standing even when the earth is faced down.<br />It is something that we cannot feel but we know is there. <br />
  6. 6. Connection to Math<br />Newton’s law was that “Every particle attracts every other particle with a force that is proportional to the product of their masses and inversely proportional to the distance between them.”<br />The quote is actually just the word version of the mathematical formula: F=Gm1m2/d2 where F is the force of gravity, G is the Gravitational Constant, m1 and m2 are the masses of the two objects, and d is the distance between them. <br />
  7. 7. What I Learned<br />I learned that the things you see around you such as an apple falling from a tree can be represented in mathematical terms. <br />But more importantly I learned that math is more around me than I ever imagined it could be.<br />
  8. 8. Bibliography<br /><br /><br /><br /><br />