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Physcis, Kinematics: Describing motion - Coggle Diagram

- - - - Displacement-Time Graphs
        
        Gradient represents
        velocity
        
        Steeper slope =
        greater velocity
        
        Negative slope =
        backward motion
  - - - Displacement (s)
        Magnitude & direction
        
        Calculated using
        geometry & trigonometry
      - Velocity (v)
        Magnitude & direction
        
        Involves
        
        Average Velocity
        v = Δs/Δt
        
        Applications include:
        
        River crossing problems
        Aircraft with crosswinds
        
        Instantaneous Velocity
        Velocity at an instant
  - - - Vector Addition
        Combining vectors
        
        Include
        
        Uses Pythagorean Theorem for perpendicular vectors
        
        Scale Drawing
        For non-perpendicular vectors
        
        Resultant Vector
        Combined effect
      - Vector Subtraction
        A - B = A + (-B)
        
        Involves
        
        Negative Vector
        Same magnitude, opposite direction
  - - - Speed (v)
        Magnitude only
        
        Involves
        
        Average Speed
        v = d/t
        
        Instantaneous Speed
        Speed at an instant
      - Time (t)
        Scalar
      - Distance (d)
        Magnitude only
      - Mass
        Scalar
  - - - Two Light Gates
        Measures average speed
      - Motion Sensor
        Generates distance-time graph
      - Ticker-Timer
        Records motion pattern
      - Single Light Gate
        Measures average speed