Mechanics

Vectors and Scalars Quantities

difference between vectors and scalarsThe basic difference between vectors and scalars is that scalar quantity is described completely by its magnitude only while vector quantity is described by magnitude and direction. Speed, energy, power are few scalar quantity examples. Force, velocity, and acceleration are some vector quantity examples.

Now, we learn in detail about scalar and vector quantities.

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Scalar quantity Vs Vector quantity

Scalars  vectors
Physical quantities having magnitude only but no direction . Physical quantities having magnitude and direction .
  These quantities are completely described by:

1:a number

2:a suitable unit

These quantities are completely described by:

1:a numbers

2:by a suitable unit

3:By certain direction

These quantities are added, subtracted, multiplied, and divided by simple arithmetic rules.      These quantities cannot be added, subtracted, multiplied, and divide by simple arithmetical rules.

What are some examples of scalar quantity?

  • Speed
  • work
  • distance
  • energy
  • power
  • Temperature
  • Volume
  • Specific heat
  • Calorie
  • Density
  • Entropy
  • Gravitational potential
  • Charge
  • Frequency
  • Kinetic energy

Examples of vector quantities

  • Force
  • Acceleration
  • Momentum
  • Torque
  • Electric flux
  • Magnetic field intensity
  • Centrifugal force
  • Shearing stress
  • Electric field intensity

List of scalar and vector quantities

  • Mass
  • weight
  • speed
  • work
  • power
  • energy
  • force
  • torque
  • displacement
  • distance

Related topics

Types of vectors

dot product and cross product

Difference between dot product and cross product

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