01 Force and Motion II
02 Pressure
03 Electricity
04 Electromagnetism
05 Electronics
06 Nuclear Physics
07 Quantum Physics

1.1.1 Vector Quantities

Vector and Scalar Quantity

  1. A scalar quantity is a quantity which can be fully described by magnitude only.
  2. A vector quantity is a quantity which is fully described by both magnitude and direction.

Vector Diagram

  1. The arrow shows the direction of the vector.
  2. The length representing the magnitude of the vector.

Equal Vector

Two vectors A and B may be defined to be equal if they have the same magnitude and point in the same direction.

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