Friday, January 28, 2011

Sir Isaac Newton's Contribution to Physics

               Sir Isaac Newton had many contributions to physics. Laws of Motion were some of his main contributions. He discovered these laws in 1687. Without the laws Newton discovered we would not be as far as we are today in modern physics.
               Newtons first law states that an object in motion will remain in motion unless acted upon by an unbalanced force. This force could be anything from friction to wind resistance. Without these unbalanced forces any object would remain at a constant velocity if a force was applied.
Isaac Newton’s second law of motion states that the greater the mass the greater amount of force needed to accelerate the object. Acceleration happens when a force is applied to an object.  We use this law everyday without knowing it. For example if I push a ten pound medicine ball it requires a greater force than pushing a marble. The mathematic equation for this law is force equals mass times acceleration.
Newton’s third law of motion is for every action there is an equal and opposite reaction. This means when there is a force applied there is an opposing force equally as strong.  So when you push any object that object pushes back. This is Newton’s third law of motion.
Newton discovered gravity when he saw an apple fall from a tree. According to his second law there had to be a force to make the apple go down. He decided to call this gravity. Then he thought what if the apple tree was twice as tall? Then gravity would reach up there too. That is how Sir Isaac newton discovered gravity.
So in conclusion Newton created the laws of motion and discovered gravity. These were very important to the advancement of physics. However these were just a few of his many contributions.

24 comments:

  1. who wrote this amazing article you should get an A+

    ReplyDelete
  2. can you add more info? arigatou :)

    ReplyDelete
  3. This comment has been removed by the author.

    ReplyDelete
  4. thank you very much anonymous...

    ReplyDelete
  5. it's very nice, it helped me for my physics project.

    ReplyDelete
  6. who wrote this amazing article you should get an A+

    ReplyDelete
  7. who wrote this amazing article you should get an A+

    ReplyDelete
  8. beautiful article:)

    ReplyDelete
  9. beautiful article:)

    ReplyDelete
  10. din mamma is beautiful :)

    ReplyDelete
  11. this helped me alot for a junior high :)

    ReplyDelete
  12. this helped me alot for a junior high :)

    ReplyDelete
  13. Very nicely explained about sir newtons discovery.
    ✌✌😘

    ReplyDelete
  14. Thanks it's very useful for me in my project

    ReplyDelete

  15. Wow. It is a very helpful topic for me .And I would like to bookmark the page so that I can come here again for you to read. Do American citizen need visa for Turkey ? Yes , of course all the American Citizens need a visa to visit . Because the USA is not included in the list of those countries which do not require a visa permit to visit Turkey.

    ReplyDelete