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# Chapter 10-11 vocab

TermDefinition
Speed The rate at which someone or something is able to move.
Acceleration The change in velocity divided by the time it takes for the change to occur.
Average Speed The total distance traveled by an object.
Inertia Tendency of an object resist a change in its motion.
Instantaneous speed Speed of an object at one instance in time.
Law of conservation of momentum A collision occurring between two objects.
Mass a coherent, typically large body of matter with no definite shape.
Velocity (in general use) speed
Balanced forces Two forces acting in opposite directions.
Unbalanced forces Forces that cause a change in the motion of the object.
Newton's first law of motion A object at rest stays at rest.
Friction The resistance that one surface or object encounters when moving over another.
Displacement The moving of something from its place or position.
Relative location A point or place in relation to another point or place
Force Strength or energy as an attribute of physical action or movement.
Net force The overall force acting on an object.
Static friction The friction that exists between a stationary object and the surface on which it's resting.
Newton's second law of motion The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force.
Gravity The force that attracts a body toward the center of the earth
Weight A body's relative mass
Center of mass A point representing the mean position of the matter in a body or system.
Newton's third law of motion For every action, there is an equal and opposite reaction.
Created by: keion123