Motion

• Motion


  Any form of movement
• Linear motion


  Movement in a straight line
• Speed


  The distance travelled in a given time
• Speed formula


  Distance/Time
• Velocity


  Speed in a given direction
• Terminal velocity


  The highest velocity attainable by an object as it falls through a fluid or air
• Acceleration


  The change in speed over time
• Acceleration formula


  Final speed - initial speed / time taken
• Acceleration has units of m/s²
• Acceleration can be constant
• When acceleration is constant

  Speed increases linearly with time
• When acceleration is constant


  Distance increases quadratically with time
• Motion can start with acceleration and then continue at constant speed