Scalars and Vectors

  • Created by: mm2004
  • Created on: 27-09-18 17:07

Scalars

Scalar Quantities 

A scalar quantity has a size (magnitude) only.

Examples of scalar quantities are:

  • Mass (kg)
  • Distance (m)
  • Speed (m/s)
  • Time (s)
  • Energy (j)
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Vectors

Vector quantities

A vector quantity has a size (magnitude) and a direction

Examples of vector quantities include:

  • Displacement (m)
  • Velocity (m/s)
  • Current (a)
  • Acceleration (m/s2)
  • Force (n)

In diagrams, vectors can be represented by arrows. The size/length of the arrows is directly proportional to the size of the vector.The direction of the arrow is in the direction of the vector.

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