Final answer:
The subject of this question is physics. In physics, the entire collection of units about which we would like information is known as the subject or the quantity being measured.
Step-by-step explanation:
The subject of this question is Physics. In physics, the entire collection of units about which we would like information is known as the subject or the quantity being measured. The collection of units we actually measure is known as the objects or the physical entities that we observe and measure.