speed and velocity

• What is speed defined as?


  The rate at which an object covers distance
• Is speed a scalar or vector quantity?


  Scalar quantity
• What is the equation for calculating speed?

  Speed = distance / time
• What are the units for measuring speed?

  meters per second (m/s) or kilometers per hour (km/h)
• What is velocity defined as?


  The rate at which an object changes its position
• Is velocity a scalar or vector quantity?


  Vector quantity
• What is the equation for calculating velocity?


  Velocity = displacement / time
• What is the unit for measuring velocity?


  meters per second (m/s)
• What are the key differences between speed and velocity?


  • Speed does not include direction; velocity does.
  • Speed uses total distance traveled; velocity uses displacement.
• How is speed represented graphically on a distance-time graph?

  • The slope (gradient) of the line represents speed.
  • A steeper slope indicates higher speed.
  • A flat line indicates the object is stationary.
• How is velocity represented graphically on a displacement-time graph?


  • The slope represents velocity.
  • It shows both speed and direction of movement.