Which of the following is an example of a vector quantity?

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SSC JE Electrical 16 Nov 2022 Shift 3 Official Paper
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  1. Mass
  2. Temperature
  3. Volume
  4. Velocity

Answer (Detailed Solution Below)

Option 4 : Velocity
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The correct answer is Velocity.

Key Points

  • The definition of a vector quantity is a physical quantity that has both magnitude and direction.
  • The fact that velocity has both magnitude and direction makes it a vector quantity.
  • The concept of velocity is used to describe the speed and direction of a moving object.
  • A scalar quantity, such as time or length, may be fully described by a single number but a vector quantity, such as velocity, which has both direction and magnitude, cannot.

Additional Information

  • Mass
    • A scalar quantity is a mass.
    • It is substantial.
    • Common units of mass measurement are kilograms and grams.
  • Temperature
    • One example of a scalar physical quantity is temperature.
    • It has a magnitude but no directional sense.
    • Pressure, energy, concentration, and density are more instances of scalar quantities.
  • Volume
    • The 3-dimensional space that is occupied by matter or surrounded by a surface is measured in volume, which is expressed in cubic units.
    • A derived measure called the cubic meter (m3) serves as the SI unit of volume.
    • Volume is how much space an object occupies, whereas capacity is how much it can hold of a substance, such as a solid, liquid, or gas.
    • Volume is expressed in cubic units, although capacity can be expressed in nearly any other unit, such as liters, gallons, pounds, etc.
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