PHYSICS NOTES FOR 9th Class
Physical Quantities and Measurement
What is physics and how it can be defined?
Physics is the branch of the Science. In which we study about the
matter, energy and how they act together.
Main Branches of Physics
1. Heat
a. Thermodynamics
2. Light
a. Optics
3. Electricity
4. Mechanics
5. Atomic Physics
6. Sound
Now as according to the book we discuss about the physical and
non-physical quantities.
Physical Quantities
There are the those quantities which is measured in the accurate
value, number and proper defined as Mass, Length, Time and etc.
Example:- 5KG, 23Meter
Physical Quantities are divided into categories
1. Base Quantities
2. Derived Quantities
Physical Quantities and Measurement
What is physics and how it can be defined?
Physics is the branch of the Science. In which we study about the
matter, energy and how they act together.
Main Branches of Physics
1. Heat
a. Thermodynamics
2. Light
a. Optics
3. Electricity
4. Mechanics
5. Atomic Physics
6. Sound
Now as according to the book we discuss about the physical and
non-physical quantities.
Physical Quantities
There are the those quantities which is measured in the accurate
value, number and proper defined as Mass, Length, Time and etc.
Example:- 5KG, 23Meter
Physical Quantities are divided into categories
1. Base Quantities
2. Derived Quantities
