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POSITON AND MOTION

QuestionAnswer
Position An objects distance and direction from a reference point
Reference point The starting point you choose to describe the location or position of an object
Motion The process of changing position.
Displacement The difference between the initial or starting position and the final position
Speed A measure of the distance an object travels in a given amount of time
Vector A quantity that has both magnitude and direction
Velocity The speed and the direction of an moving objects
Acceleration A change in an object’s speed or direction over time.
Force A push or pull that can change an object’s motion.
contact force A force that happens when two objects physically touch each other.
Newton's 2nd law The acceleration of an object depends on the net force acting on it and the object’s mass.
Law A rule in science that describes a pattern in nature that always happens the same way.
friction A contact force that resists motion between two surfaces that are touching.
free body diagram A drawing that shows an object and all the forces acting on it.
Net force The total force acting on an object after all forces are combined.
Newton's 1st law An object will stay at rest or keep moving at a constant speed unless a force acts on it.
Newton’s 3rd Law For every action force, there is an equal and opposite reaction force.
Force Pair The support force that acts The two forces involved in Newton’s 3rd law that act on two different objects with equal strength and opposite direction. to a surface.
Normal Force The support force that acts perpendicular to a surface.
Elastic Collision A collision where objects bounce off each other and no kinetic energy is lost.
Inelastic Collision A collision where objects stick together and kinetic energy is lost.
Non contact force force without physical contact involved
Gravity force attracting masses toward each other
field An open area, domain,or range.
Weight The force gravity exerts on mass
Created by: user-2020479
 

 



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