In physics, a location in space that has no size or dimension is called a:

• A. $\mathrm{point}$
• B. $\mathrm{vector}$
• C. $\mathrm{plane}$
• D. $\mathrm{line}$

Answer: (A)

Verified step by step guidance

1. Understand the definitions of the given terms: a 'point' is a precise location in space with no size or dimension; a 'vector' has both magnitude and direction; a 'plane' is a flat two-dimensional surface extending infinitely; and a 'line' is a one-dimensional figure extending infinitely in both directions.
2. Recall that in physics and geometry, a 'point' is used to represent an exact position or location without any length, width, or height.
3. Recognize that a 'vector' represents quantities like displacement or force, which have direction and magnitude, so it is not just a location.
4. Note that a 'plane' and a 'line' have dimensions (two and one, respectively), so they cannot be considered as having no size or dimension.
5. Conclude that the correct term for a location in space with no size or dimension is a 'point'.