Difference between scalar and vector quantity

In physics there are scalar quantities and vector quantities

• Scalar quantities
  Scalar quantities only have magnitude and can be represented by real numbers also called scalars.

  An example of a vector quantity is temperature.

• Vector quantities
  Vector quantities have both magnitude and direction. These quantities are represented by vectors.

  An example of a vector quantity is force. In space up to three dimensions, vectors are represented by arrows having a certain length, direction and emanating from some given reference point O. The reference point of the vector is the origin (O) of the axes in R² or R³ space.