Scalar and vector quantities

• Examples of scalar quantities

  . Mass

  . Temperature

  . Speed

  . Energy

  . Distance

  . Time
• Scalar quantities have magnitude (size) only
• Scalar quantities do not have a direction
• Examples of vector quantities

  . Displacement

  . Weight

  . Force

  . Velocity

  . Acceleration

  . Momentum
• Vector quantities have both direction and magnitude
• . We can use arrows to represent vectors

  . The length of the arrow represents the magnitude of the vector

  . Direction of arrow represents direction of vector