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Physics Unit 2 - Force, Acceleration And Terminal Velocity

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GCSE Physics Unit 2 - Force, Acceleration and Terminal Velocity.
Ryan Storey
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Ryan Storey
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Physics Unit 2 - Force, Acceleration And Terminal Velocity
  1. Acceleration
    1. Non-Resultant Force Creates An Acceleration
      1. F=m*a
        1. a=f/m
          1. m= Mass (Kg)
            1. a=Acceleration
              1. F=Resultant Force
        2. Forces
          1. When two object interact the forces are equal and opposite
            1. E.G: If you push a trolley it will push back just as hard
              1. Reaction Forces
                1. When two objects interact, the forces they apply on each other are EQUAL and OPPOSITE
                2. Frictional Force
                  1. Frintion slows things down
                    1. If an object has no force moving it then it will always slow down and stop
                      1. Friction acts in the opposite direction to movement
                      2. To travel at a steady speed, the driving force needs to balance the frictional forces
                    2. Drag
                      1. Also know as fluids E.G: Air or Water
                        1. As Drag Increases, Speed Increases
                          1. This is because as a car speeds up it has much more friction to work against
                            1. Work harder to maintain steady speed
                            2. Terminal Velocity
                              1. Terminal velocity is the highest velocity attainable by an object in free fall
                                1. Objects falling through fluids reach a terminal velocity
                                  1. Factors Effecting Terminal Velocity
                                    1. Area
                                      1. Size
                                        1. Shape
                                          1. A parachute with a larger surface area has a bigger resistance

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