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Science 7 10-1/2

QuestionAnswer
force push or pull
unbalanced force causes object to start moving, stop moving, or change direction
newton unit to measure force
net force total force
balanced force equal forces acting in opposite directions
friction force when two objects rub against each other
factors that affect friction how hard surfaces push together and type of surface
static friction not moving
fluid friction solid moves through a liquid
friction acts in opposite direction of motion
gravity force that pulls objects toward each other
gravitational attraction dependent on mass and distance
free fall only force acting on object is gravity
air resistance type of fluid friction
terminal velocity force of air resistance equals weight of object
projectile object that is thrown
mass amount of matter
weight changes based on gravitational force
Created by: jmeager
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