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To change and object's motion you need ___ ___.
To change and object's motion you need unbalanced forces.
Constant or no motion means ___ ___.
Constant or no motion means balanced forces.
Three ways to describe motion: __ __ __
Three ways to describe motion: words, math, and graphs.
"zero" location in a frame of reference.
Frame of Reference
A number line used to describe motion.
separation between the object and reference point.
quantity that only has size/magnitude.
# and unit
quantity that has size/magnitude and direction.
#, unit, and direction.
position at a certain time
- measures the separation between two objects
- needs no reference point
- scalar quantity
Displacement (delta d)
- change in position of an object (startpoint to endpoint w/ direction)
- vector quantity