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# Vectors Scalars 1

## on Dec 08, 2007

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## Vectors Scalars 1Presentation Transcript

• Scalar Quantities
• Describes magnitude
• Does not depend on direction
• Is not changed by the coordinate system
• Scalars
• All of these examples have one unit and do not have a direction
• Mass (78 g)
• Area/Volume (68m^2)
• Temperature (12°C)
• Energy (100.3 J)
• Time (30 minutes)
• Money (\$56)
• Vectors
• A quantity that describes both magnitude and direction
• Can be drawn as an arrow where the length represents the magnitude and the direction of the arrow represents the direction of the vector
Velocity and distance are examples of vectors
• Triangle Method
• Move the 2 nd vector so it starts at the end of the first vector
• The resultant vector will start at the beginning of the 1 st vector and stop at the end of the 2 nd vector