Scalar quantities have
Correct answer: A. Only magnitudes
- A. Only magnitudes
- B. Only directions
- C. Both magnitude and direction
- D. None of these
Explanation
The Explanation for this question is as follows: Scalar Quantity Definition The physical quantities which have only magnitude are known as scalar quantities. It is fully described by a magnitude or a numerical value. Scalar quantity does not have directions. In other terms, a scalar is a measure of quantity. Scalar Quantity Examples Other examples of scalar quantities are mass, speed, distance, time, energy, density, volume, temperature, distance, work and so on.
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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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