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Stack #4631134

QuestionAnswer
reference point The staring point you choose to describe the location, or position, of an object.
position an objects distance and direction from reference point
motion process of changing position
displacement the difference between the initial, or starting, position and final position
speed measure of the distance an object travels in a given amount of time
velocity the speed and direction of a moving object
vector a quantity that has both magnitude and direction
acceleration is a measure of the change in velocity during a period of time
force a push or a pull on an object
contact force push or pull on one object by another object that is touching it
friction a force the resists the sliding motion of two surfaces that are touching
net force the sum of all the forces acting on an object
force pair the forces two objects apply to each other
normal force the force the pushes perpendicular to the objects surface
elastic collision when colliding objects bounce off each other
noncontact force force that one object can apply to another object without touching it
gravity an attractive force that exists between all objects that have mass
weight the gravitational force exerted on an object
Newton's second law of motion the acceleration of an object is equal to the net force exerted on the objects divided by the objects mass
Newton's first law of motion an object at rest will stay at rest, an object in motion will stay in motion unless an outside force acts on it
Newton's third law of motion for action there is an equal but opposite reaction
Created by: user-1908766
 

 



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