A physical quantity is something that can tell me the exact value. Measure and set up various rules and used to display the two types: breakdown. 1. is the us holiday notke, but size alone, it has a complete meaning don't tell the direction such as mass message. Area, volume, density, etc. to find the results of the primary residence and scalar algebra. Subtraction multiplication Division. 2. vector quantity is the quantity that has both magnitude and direction, such as displacement velocity acceleration. Force vector quantities, weights, etc., written with an arrow, the size of the length of the arrow will be equal to the size of the vector quantity, the best direction of the ball. The arrow shows the direction of the vector quantity.
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