Newtons laws

• Newtons 1st law


  An object will remain stationary or at a constant velocity unless acted upon by an external force
• Newtons 2nd law


  The force acting on an object is equal to its rate of change of momentum
• 2nd law experiment

  1. Place light gates equal distances apart on the track
  2. Release the weight - forces the trolley to accelerate
  3. Plot results of acceleration with its force
  4. Change the size of the force (weight)
  5. Plot a graph

  
• Terminal velocity depends on an objects drag

  
• Newtons 3rd law


  When 2 objects interact, the forces they exert on each other are equal and opposite