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forces and motion

vocabuary

TermDefinition
distance the total change in position
displacement the difference between the initial, or starting,position and the position
reference point the point where the object starts
position distance and direction from the reference point
motion the process of changing and moving
speed a measure of the distance an object travels in a given amount of time
velocity the speed and the direction of a moving object
vector a quantity that has both magnitude and direction
acceleration a measure of the change in velocity during a period of time.
force a push or a pull on a object
contact force a push or a pull on one object by another object that is touching it.
newtons 2nd law the acceleration of an object equalsnet force on the object divided by the objects mass
friction a force that resists the sliding motion of two surfaces that are touching.
free body diagram a simple model to understand systems of objects with any amount ofapplied forces.
net force the sum of all the forces acting on an object.
newtons first law motion that an object in motion will stay in motion
non-contact force a force that one object applies to another object without touching it
gravity an attractive force that excist between all objects that mass force
field a region of space that has a physical quantity.
weight the gravitational force exerted on an object
inertia the inherent resistance of any physical object to change its state of motion or rest, fundamentally determined by its mass
force pair the forces two objects apply to eachother
normal force the force the pushes perpendicular to the objects surface
elastic colusion when colliding objects bounce off eachother
inelastic colusion when colliding objects go the same direction
Created by: user-2021390
 

 



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