Скачать или смотреть Science | Prep.3 | Physical Quantities, Scalars and Vectors | Part (1/3) | Unit One - Lesson Three

In This part we will study :
Physical quantity :
It is any quantity that can be determined and has a measuring unit in our life.
• Each physical quantity is measured in a special measuring unit.
Scalar Physical quantity
It is the physical quantity that has magnitude only and has no direction .
Examples of some scalar physical quantities and their measuring units :
Mass → Kilogram (kg) Length (or distance) → Metre (m) Energy → Joule
Time → Second or Hour Speed → m/s or Km/h Temperature → K or °C or °F
The radius, area and density are examples of scalar physical quantities.
Vector physical quantities
It is the physical quantity that has magnitude and direction .
Examples of some vector physical quantities and their measuring units :
Acceleration → m/s2 Force → Newton Velocity → m/s
Displacement → Meter Weight → Newton


لينك تحميل الملزمة :
Prep.3 - unit One - lesson Three - First Term 2020
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تم شرح هذا الدرس في (3) فيديوهات شاهدها بالترتيب
Physical Quantities, Scalars and Vectors
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(Part (3/3
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