Question

what is the term for the size or numerical value of a physical quantity?
○ scalar
○ magnitude
○ vector
○ direction

Explanation:

• Scalar: A physical quantity with only magnitude (e.g., mass, temperature), but the term for the size/value itself is not "scalar".
• Magnitude: Defined as the size or numerical value of a physical quantity (e.g., the magnitude of velocity is speed, magnitude of force is its strength).
• Vector: A quantity with magnitude and direction (e.g., velocity, force), so it's not just the size/value.
• Direction: Refers to the path/orientation, not the size/value of a quantity.

Answer:

B. Magnitude