Basics

Question 1

Physical Quantity

Answer 1

Any property of matter that can be measured is called a physical quantity (or simply a quantity)

Question 2

Measuring

Answer 2

When you measure a quantity you compare it with a standard amount of the same quantity. This standard amount is called a unit.

Question 3

Unit

Answer 3

The unit of any quantity can be written as a product or quotient of one or more base units