VECTORS AND SCALARS
CONTENT
- The Concept of Scalars
- The Concept of Vectors
- Distinction between Scalars and Vectors
- Similarities between Scalars and Vectors
- Types of Vectors
- Representation of Vectors
- Addition of Vectors
- Parallelogram Law of Vectors
- Triangular Law of Vectors
- 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.
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