Which among the following is a scalar quantity?

The correct answer is Mass.

Key Points

• Mass is a scalar quantity because it has only magnitude and no direction.
• Scalar quantities are those physical quantities that are described completely by their magnitude alone.
• Unlike vectors, scalar quantities do not require direction for their specification.
• Mass is a fundamental property of matter and is independent of the object's location or the forces acting upon it.
• Examples of scalar quantities include mass, temperature, energy, and distance.

Additional Information

• Velocity:
  • Velocity is a vector quantity as it has both magnitude and direction.
  • It represents the rate of change of an object’s position with respect to time.
• Momentum:
  • Momentum is a vector quantity given by the product of an object’s mass and its velocity.
  • It indicates the amount of motion an object has and the direction of that motion.
• Force:
  • Force is a vector quantity that represents the interaction that causes an object to accelerate.
  • It is described by both magnitude and direction, with the SI unit being the newton (N).
• Scalar vs. Vector Quantities:
  • Scalar quantities are described by magnitude only, while vector quantities require both magnitude and direction.
  • Key examples of scalar quantities: energy, speed, and mass; key examples of vector quantities: displacement, velocity, and force.