physics 2A

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  • physics 2A
    • velocity and distance-time graphs
      • equations
        • speed=distance/time
      • important notes
        • gradient=speed
          • physics 2A
            • velocity and distance-time graphs
              • equations
                • speed=distance/time
              • important notes
                • gradient=speed
                  • flat sections are when its stationary
                  • straight up or down mean its at a constant speed
                  • the steeper the faster
                  • downhill means its going towards the start point
                  • curves represent acceleration or de-celleration
              • acceleration and velocity-time graph
                • Equations
                  • acceleration=change in velocity/time taken
                • important notes
                  • flat sections represent steady speed
                  • the steeper the graph the greater the acceleration or deceleration
                  • downhill sections represent deceleration
                  • the area under any sections of the graph is equal to the distance travelled in the time frame
                  • the curve means changing acceleration
              • forces
                • resultant
                  • real situations there are two forces acting on an object along any direction.
                  • the overall effect of these forces will decide its movement, acceleration or deceleration or steady speed
                • gravitaional
                  • energy is due to height
                  • measured in joules
                  • earths gravitational field strength is about 10 N/Kg
              • kinetic energy
                • kinetic energy transferred is work done
                • energy of movement
                • when something falls, it converts potential energy into kinetic
          • flat sections are when its stationary
          • straight up or down mean its at a constant speed
          • the steeper the faster
          • downhill means its going towards the start point
          • curves represent acceleration or de-celleration
      • acceleration and velocity-time graph
        • Equations
          • acceleration=change in velocity/time taken
        • important notes
          • flat sections represent steady speed
          • the steeper the graph the greater the acceleration or deceleration
          • downhill sections represent deceleration
          • the area under any sections of the graph is equal to the distance travelled in the time frame
          • the curve means changing acceleration
      • forces
        • resultant
          • real situations there are two forces acting on an object along any direction.
          • the overall effect of these forces will decide its movement, acceleration or deceleration or steady speed
        • gravitaional
          • energy is due to height
          • measured in joules
          • earths gravitational field strength is about 10 N/Kg
      • kinetic energy
        • kinetic energy transferred is work done
        • energy of movement
        • when something falls, it converts potential energy into kinetic

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