Scalar Quantity

  1. Scalars are quantities which are fully described by a magnitude alone.
  2. Magnitude is the numerical value of a quantity.
  3. Examples of scalar quantities are distance, speed, mass, volume, temperature, density and energy.

Vector Quantity
  1. Vectors are quantities which are fully described by both a magnitude and a direction.
  2. Examples of vector quantities are displacement, velocity, acceleration, force, momentum, and magnetic field.

Example 1
Categorize each quantity below as being either a vector or a scalar.

Speed, velocity, acceleration, distance, displacement, energy, electrical charge, density, volume, length, momentum, time, temperature, force, mass, power, work, impulse.

Answer:
Scalar Quantities:
  • speed
  • distance
  • energy
  • electrical charge
  • density
  • volume
  • length
  • time
  • temperature
  • mass
  • power
  • work
Vector Quantities
  • velocity
  • acceleration
  • displacement
  • momentum
  • force
  • impulse


4 comments

  1. Brian Catt // April 28, 2010 at 10:48 AM  

    Thanks, just when I was starting a tutoring session on this paper for the first time....

  2. Sheriffdeen // November 29, 2012 at 6:58 AM  

    10kz u this teach help me in my exam god we bless u @seriffhassan@yahoo.com

  3. Ozymandias // September 26, 2013 at 6:07 AM  

    Useful just one question... which category does potential moment and density come under?

  4. nur afifah // July 18, 2014 at 12:25 AM  

    Wow..this blog help me a lot.
    thank you so much..