Knight Ch 3 - vectors notes

# Knight Ch 3 - vectors notes - Vectors Chapter 3 A scalar...

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A vector quantity has both magnitude and direction. Myrtle Beach is 300 mi East of Clemson. He drove with a velocity of 80 km/h due East. REMEMBER: Vectors will be written in boldface ( r ) or with an arrow over them ( ). This is important in differentiating between a scalar and a vector! r G A scalar quantity has only ___________ and no direction. This means we can fully explain a scalar with a number and a unit It is 36 o F on a cold winter day The ball fell for a time of 1.25 s The sled's kinetic energy was 0.54 J The length of a meter stick is 1m Vectors – Chapter 3 Coordinate Systems A point can be located on an x-, y- coordinate system by its coordinates x and y. (x, y) y The x- and y-coordinates may be either positive or negative VECTOR We can describe the point (x,y) as a point located by a _________ r that has components of ___ and ____. (x, y) y r NOTE: Vectors will be written in boldface ( r ) or with an arrow over them ( ). r G Vectors (x, y) y r Our vector r can be written as r = x + y Or as Please note: this is NOT the same as r = _________!!! y

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Knight Ch 3 - vectors notes - Vectors Chapter 3 A scalar...

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