Isaac Newton

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Isaac Newton

• By Jaime Blackmon
• Sarah Spencer

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The Life of Isaac Newton

• Isaac Newton was born on December 25, 1642 in
  England. The exact date of his birth is disputed
  among many, but December 25th is the date most
  commonly given. As a child, Newton preferred
  singing and playing the harp over science. Even
  as an adult, he never intended for his works to
  be published. Isaac Newton is most famous for his
  Three Laws of Motion, which dictate how forces
  can influence an object. These laws can be
  considered the base of modern science due to
  their unbreakable standards. Besides working in
  the field of science, Newton wrote many religious
  criticisms that urged readers to not interpret
  the Bible literally. Isaac Newton died on March
  31, 1727. His autopsy presented that he died of
  mercury poisoning, which accounts for his
  peculiar behavior in his later years. Newton's
  figuring in the field of science, especially
  motion, helped the world to advance.

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Newtons First Law of Motion

• Newton's first law of motion, also called the
  law of inertia, declares that every object in a
  state of uniform motion tends to remain in that
  state of motion unless an external force is
  applied to it. This means that an object will not
  move unless an outside force is added to it. It
  also states that an object will stay in motion as
  long as the force is applied to it. The objects
  basic goal is to move in the same direction and
  at the same speed, and it will attempt to right
  itself after its motion has been tampered with.
  The law of inertia can be summarized as an
  objects motion resisting change. The first law
  of motion helps to explain why and how objects
  move.

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Newtons Second Law of Motion

• Isaac Newtons second law states that the
  relationship between an object's mass, its
  acceleration, and the applied force is F ma.
  Acceleration and force are vectors in this law
  the direction of the force vector is the same as
  the direction of the acceleration vector. This
  explains that when an object is put into motion,
  its force and acceleration both push the object
  in the same direction. Also, the force that is
  applied to the object can be calculated by
  multiplying its mass and acceleration. This notes
  that an objects acceleration, also called
  velocity, can change over time, an idea that had
  never been explored before Newton created this
  law. Finally, it explains how when force it
  applied to an object, its velocity changes. This
  law of motion shows how force, acceleration, and
  mass all contribute to how an object moves.

Mass 250g Acceleration 30 mph Force 7500 N
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Newtons Third Law of Motion

• Newtons third and final law of motion
  explains that for every action there is an equal
  and opposite reaction. This law helps to clarify
  how forces affect motion. When a force, or
  action, is applied to an object, the object
  behaves oppositely and equally. For example, if a
  ball was rolled in one direction, it would roll
  with equal force and away from the place that it
  was rolled. This law is important because without
  it, an objects behavior would be sporadic and
  unpredictable. This law helps for scientists and
  students alike to determine an objects motion.

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Newtons Law of Universal Gravitation

• This law explains what determines the
  strength of the gravitational attraction between
  two objects or more. At least one of these
  objects would have to have a very large mass
  (like a moon, planet, or star) for the effects of
  gravity to be felt.
• In summary, the law shows that the gravitational
  attraction between 2 objects depends on their
  masses and the distance between them
• Small masses and far away weakest gravity
• Small masses and close OR
• Large masses and far away weak gravity
• Larger masses and/or closer distances stronger
  gravitational attraction

F force of gravity m mass of object r
radius distance between them
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Conclusion

• Isaac Newton was a great scientist. He did
  not follow his dreams, but became something
  greater than he would have been. He created the
  three laws of motion, which without, the
  astronomers and scientists today would have a
  tough time studying the stars without. The first
  law of motion means that objects have a tendency
  to keep doing what they were doing before
  continually. They resist change, and if force is
  not unbalanced, the object in motion will stay
  the same. The second law means that heavier
  objects require more force to move than lighter
  objects. It also means FMA or Force Mass x
  Acceleration. Newtons third law means that for
  every action or force there is equal size, with
  an opposite direction. Newtons laws give many
  people a good understanding of how objects move
  and reaction to forces on objects. Newton was a
  successful scientist, and his laws still live on
  today.

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Bibliography

• http//csep10.phys.utk.edu/astr161/lect/history/ne
  wton3laws.html
• http//teachertech.rice.edu/Participants/louviere/
  Newton/law2.html
• http//www.glenbrook.k12.il.us/GBSSCI/PHYS/CLASS/n
  ewtlaws/u2l3a.html
• http//en.wikipedia.org/wiki/Isaac_Newton
• http//answers.yahoo.com/question/index?qid200711
  16135535AATesop
• http//www.funtrivia.com/en/People/Isaac-Newton-68
  92.html