Motion

Nota:

• Magnitude- a body's property that can be measured and it is used to study and describe them (2 TYPES)

1. Scalar Magnitudes
   1. Definition: Scalars have values or have magnitude. However, it doesn't include direction.
   2. Distance
      1. A type of scalar measurement that only measures the length traveled.
   3. Speed
      1. A type of scalar measurement the rate at which someone or something is moving without direction.
         1. Speed = Distance / Time
      2. OTHER EXAMPLES: density, temperature, time, length, volume
2. Vector Magnitudes
   1. Definition: Vectors have values or magnitude. They also include direction.

      Nota:

      • DIRECTION EXAMPLES: north, south east, west, northwest, northeast, southwest, southeast, left, right, up, down, inward, outward, returning to start, stationary, steady speed up, steady speed down. 
   2. Displacement
      1. A type of vector measurement that measures the length traveled and direction.
      2. "AS THE CROW FLIES" is a term used (on a map) meaning the shortest distance back to the start point. This means instead of going around obstacles, you can go over them.
   3. Velocity
      1. A type of velocity measurement the rate at which someone or something is moving including direction.
         1. Velocity = Distance / Time
      2. OTHER EXAMPLES: weight, momentum, acceleration, force
      3. Instantaneous Velocity or Speed

         Nota:

         • An instant of speed. When on a graph, the instantaneous speed is calculated by using ONE SEGMENT and use the speed formula.
      4. Average Velocity or Speed

         Nota:

         • The overall speed of the ENTIRE graph. This means you calculate th TOTAL amount of distance and TOTAL time. Finally, you use the distance formula.