Which of the following is the example of scalar quantity?
Correct answer: D. Mass
- A. Momentum
- B. Force
- C. Acceleration
- D. Mass
Explanation
Mass is considered a scalar quantity because it only has magnitude and no direction. In the context of mass, its magnitude represents the amount of matter in an object. The mass of an object remains the same regardless of its orientation or position in space. When we talk about doubling the mass of an object, we are referring only to the magnitude of mass, not any directional aspect. In summary, mass is a scalar because it is characterized solely by its magnitude and lacks a directional component.
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About Vectors and Equilibrium
Vectors have magnitude and direction, unlike scalars, and are combined by head-to-tail or parallelogram methods. Work covers rectangular components, equilibrium when the resultant force is zero, the scalar product for work and projections, and the vector product for torque and cross-product direction using the right-hand rule.
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