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Gravity By: CJ Miske. What is gravity? Gravity is the force that causes two particles to pull towards each other. The force of attraction by which terrestrial.

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Presentation on theme: "Gravity By: CJ Miske. What is gravity? Gravity is the force that causes two particles to pull towards each other. The force of attraction by which terrestrial."— Presentation transcript:

1 Gravity By: CJ Miske

2 What is gravity? Gravity is the force that causes two particles to pull towards each other. The force of attraction by which terrestrial bodies tend to fall toward the center of the earth.

3 Founder of Gravitational Theory Sir Isaac Newton

4 Isaac Newton Newton’s life (January 4, 1643 – March 31, 1727) Newton was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian. Published “Mathematical Principles of Natural Philosophy” in 1687. (One of the most important scientific books ever written)

5 Gravitational Theory Newton's law of universal gravitation states that every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

6 Could We Survive Without Gravity? Without gravity, the air in the atmosphere has no reason to hang around, and it would immediately leap into space. This is the problem the moon has - the moon doesn't have enough gravity to keep an atmosphere around it, so it's in a near vacuum. Without an atmosphere, any living thing would die immediately and anything liquid would boil away into space. Sooo… No!

7 What type of force is Gravity? Pull

8 So What Do We Know About Gravity? It causes any two objects in the universe to be drawn to one another. Gravity assisted in forming the universe. It keeps the moon in orbit around the Earth,

9 Gravity and the Black Hole When gravity gets to extreme and overwhelms all other forces in the universe, it causes a black hole. Once inside, nothing can escape a black hole's gravity — not even light.

10 Video http://www.youtube.com/watch?v=Arr- 5oihTm4 http://www.youtube.com/watch?v=Arr- 5oihTm4

11 Works Cited "Newton's Law of Universal Gravitation." Wikipedia, the Free Encyclopedia. Web. 09 Apr. 2011.. "Gravity | Define Gravity at Dictionary.com." Dictionary.com | Free Online Dictionary for English Definitions. Web. 09 Apr. 2011.. "Answers.com - Who Is the Founder of the Law of Gravity." WikiAnswers - The Q&A Wiki. Web. 09 Apr. 2011.. http://science.howstuffworks.com/environmental/earth/geophysics /what-if-zero-gravity1.htm

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