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A quantity with both magnitude and direction.
Vector
A quantity with magnitude only
scalar
How can you tell magnitude when their is no value given?
length of the arrow
vectors can be ______ or _________ because of position or direction.
positive or negative
A vector pointing north, east, right or up is a _________ vector.
positive
A vector pointing south, west, down or left is a _______ vector.
negative
If vector arrows are in the same direction, ___the magnitudes to find the resultant vector.
add
NET force (Fnet) =
sum of all the forces
If vector arrows are in opposite directions, and the magnitudes are NOT labeled as (+) or (-), _________the magnitudes to find the resultant vector.
subtract
Forces that are equal in size (magnitude) and opposite in direction are ___________ forces.
Balanced Forces
When forces are balanced there is ________ change in motion.
no
When forces are balanced the net force equals _______.
zero
Forces applied to an object that will change its speed, direction, or both are ___________ forces.
unbalanced
If there is a change in motion, acceleration and the net force does NOT equal zero, then the forces are __________.
unbalanced
Objects at rest stay at rest---until acted on by an ____________force.
unbalanced
Objects in motion stay in motion at the same speed and in the same direction (no acceleration)---until acted on by an _____________ force.
unbalanced
