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


8 comments

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