definition, equations and units of scalars & vectors

• Name the scalar quantities


  Distance, Mass, Speed
• Name the vector quantities

  Weight, Velocity, Momentum, Displacement, Acceleration
• Define Weight, and name it's unit of measurement

  The gravitational force the earth exerts on the body, measured in Newtons (N)
• What is the equation for weight?

  Mass (kg) x Gravity (9.8)
• Define Velocity, and name it's unit of measurement

  The rate of change of displacement, measured in metres per second (m/s)
• What is the equation for Velocity?

  Displacement/Time
• Define momentum, and name it's unit of measurement

  The quantity of motion of a body, measured in kilogram metres per second (Kg/s)
• What is the equation for momentum?

  Mass (kg) x Velocity (m/s)
• Define displacement, and name it's unit of measurement

  The shortest route between the starting and finishing point, measured in metres (m)
• What is the equation for displacement?


  Just measure a straight line between two points
• Define acceleration, and name it's unit of measurement


  The rate of change of velocity, measured in metres per second squared (m/s^2)
• What is the equation for acceleration?

  Change in velocity/Time
• Define Distance, and name it's unit of measurement

  The length of space between two points, measured in metres (m)
• What is the equation for distance?

  Speed x Time
• Define Mass, and name it's unit of measurement


  The quantity of matter a body possesses, measured in kilograms (kg)
• What is the equation for mass?

  Density x Volume
• Define Speed, and name it's unit of measurement

  The distance covered by a moving object in unit time taken
• What is the equation for speed?


  Distance/Time
• What is a vector quantity?

  A quantity that has both magnitude and direction
• What is a scalar quantity?

  A quantity that has only magnitude