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VECTORS AND SCALARS

CONTENT

  1. The Concept of Scalars
  2. The Concept of Vectors
  3. Distinction between Scalars and Vectors
  4. Similarities between Scalars and Vectors
  5. Types of Vectors
  6. Representation of Vectors
  7. Addition of Vectors
  8. Parallelogram Law of Vectors
  9. Triangular Law of Vectors
  10. Resolution of Vectors

 

The Concept of Scalars

Scalars are physical quantities that have magnitude but no direction. That is, scalar has value and unit but no direction. E.g, 10km. This 10km could be in any direction since there is no actual direction. The ‘10’ is the value- the magnitude. Therefore, just 10km is a scalar quantity. Scalar quantities are always not directional.

Scalar quantities unlike vectors have only magnitude. Example; length, area, volume, temperature, work, energy, power, mechanical advantage, velocity ratio, efficiency, surface tension,

Other examples of scalar quantities include:

  • Speed
  • Time
  • Density
  • Mass
  • Distance, etc.

Scalars are non directional physical quantities.

 

The Concept of Vectors

Vectors are physical quantities that have both magnitude and direction.

Lesson tags: Physics Lesson Notes, Physics Objective Questions, SS2 Physics, SS2 Physics Evaluation Questions, SS2 Physics Evaluation Questions First Term, SS2 Physics First Term, SS2 Physics Objective Questions, SS2 Physics Objective Questions First Term
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