Newton’s 2nd law of motion!

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  • i will use this with my yr10 class. need some images with it.
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Newton’s 2nd law of motion!

  1. 1. Newton’s 2 nd Law of Motion!
  2. 2. 2 nd Law <ul><li>This law describes changes in the motion of objects </li></ul><ul><li>That change is acceleration ( Δ v/t). The cause of acceleration is force </li></ul><ul><ul><li>Acceleration depends on NET force </li></ul></ul><ul><ul><li>NET force & acceleration are proportional . </li></ul></ul>
  3. 3. 2 nd Law <ul><li>Mass is inversely proportional to acceleration. </li></ul><ul><li>As the mass increases, the acceleration decreases. </li></ul>
  4. 4. 2 nd Law <ul><li>Putting these together gives us Newton’s 2 nd Law of Motion </li></ul><ul><li>The acceleration of an object is directly proportional to the net force and inversely proportional to the mass </li></ul>
  5. 5. 2 nd Law <ul><li>acceleration = net force </li></ul><ul><li> mass </li></ul>
  6. 6. 2 nd Law <ul><li>Can change the formula around to. . . </li></ul><ul><li>F = ma </li></ul>
  7. 7. Mass vs. Weight <ul><li>Mass – the measure of the amount of material (matter) in an object. </li></ul><ul><li>Weight – a measure of the gravitational force acting on the object </li></ul>
  8. 8. <ul><li>Mass remains the same – no matter the location </li></ul><ul><li>Weight is dependent on gravity </li></ul><ul><ul><li>Mass & weight are proportional to each other, but not equal </li></ul></ul><ul><ul><li>W = mg </li></ul></ul><ul><ul><li>Acceleration due to gravity is 9.8m/s 2 . </li></ul></ul>

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