Question

❤️•ااGud morningاا•❤️


"Define the following terms":
•} physical quantities
•}base quantities
•}derived quantities

=========================​

Answer 1

Answer:

good morning how are you

Explanation:

1.A physical quantity is a property of a material or system that can be quantified by measurement. A physical quantity can be expressed as the combination of a numerical value and a unit. For example, the physical quantity mass can be quantified as n kg, where n is the numerical value and kg is the unit. A physical quantity possesses at least two characteristics in common, one is numerical magnitude and other is the unit in which it is measured.

2.A base quantity is a physical quantity in a subset of a given system of quantities that is chosen by convention, where no quantity in the set can be expressed in terms of the others. The ISQ defines seven base quantities. The symbols for them, as for other quantities, are written in italics.

3. quantity are those quantity which are measured by two or more measurements.

Answer 2

Base quantities are physical quantities that cannot be defined in terms of other quantities. Table shows five base quantities and their respective SI units. Derived quantities are physical quantities derived from combinations of base quantities through multiplication.

To describe a physical quantity we first define the unit in which the measurement is made. There are many systems of units but the most common system of units used by scientists is based on the metric system.

The modernised version of the metric system is called International System of Units, officially abbreviated as SI.

We can represent a physical quantity by the symbol of the quantity, the numerical value of the magnitude of the quantity and the unit of measurement of the quantity. For example, Figure shows a footballer scoring a goal. The ball was kicked a distance of 8 m.