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# Physics Ch.test

### Ch. 5.1-6.1 test

scalar a quantity that can be completely described by a single value called magnitude
magnitude the size or amount and always includes units of measurement
vector a quantity that includes both magnitude and direction
three ways to describe a force graph; magnitude, anglle; x-y pair
components can replace a force vector, is a perpendicular vector; the legs of the triangle, sides a and b
the original vector side c or hypotnuse of a triangle
free-body diagram a diagram that uses vectors to show all of the forces acting on an object
displacement a vector that shows a change in position
projectile any object moving through air and only affected by gravity
trajectory the path a projectile follows
horizontal distnace dx=vxt
vertical distance dy=4.9t2
Created by: kgr101297
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