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ForHed wk 21

Force and Motion Vocab. 8th Grade

force a push or pull that can change the motion of an object
balanced forces forces that do not change the motion of the object
unbalanced forces forces that cause change in the motion of the object
net force the sum of all the forces acting on an object
at rest the state of an object when it is not in motion
motion the change in an object’s position with respect to time and in comparison to reference points
speed the rate of change of position with respect to time
direction the path that an object is moving or facing
friction a force between two surfaces in contact with each other; it works against motion
vector a quantity represented by an arrow with both direction and magnitude
inertia an object's resistance to change in motion; based on mass
gravity a force that exists between any two objects that have mass, frequently Earth's mass and smaller objects
acceleration a change in velocity (speed or direction)
velocity an object's speed in a certain direction; it is a vector value
mass the amount of matter in an object
Newton the unit of measurement for force
Newton, Sir Isaac a famous British scientist who lived in the 1600s-1700s
Created by: foremanh71