Newton's 3 Laws and Force
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Newton's 3 Laws and Force

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Newton's 3 Laws and Force Newton's 3 Laws and Force Presentation Transcript

  • What is a Force? A force is a push or pull on an object A force has a size AND a direction Examples of forces: -Pushing your book across a table -Pushing a box
  • Newton’s First Law What is Newton’s 1st law?? • Objects in motion stay in motion • Objects at rest stay at rest
  • Force is equal to an object’s mass times its acceleration maf  Newton’s Second Law m = 1000 kg a = 0.05 f = ??? f = 50 N
  • Newton’s Third Law All forces exist in pairs (pair = 2) For every action, there is an equal and opposite reaction THERE CANNOT BE ONE FORCE
  • Videos……. http://www.youtube.com/watch?v=NYVMlmL0BPQ http://www.youtube.com/watch?v=QffUhiX2uSg http://www.youtube.com/watch?v=JGO_zDWmkvk http://www.youtube.com/watch?v=cP0Bb3WXJ_k
  • Complete Questions in Notebook 1. Using the equation to the right, what will be more difficult to accelerate, an object with a large or a small mass? 2. Explain Newton’s first, second and third laws and draw a picture to help explain each law. maf 