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vocab - science

TermDefinition
position an object's distance and direction from reference point
motion the process of changing position
reference the starting point you choose to desire, location, or position of an object
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
velocity the speed and direction, something moving
vector 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 of an object
contact force a push or pull on one object by another object that is touching it
newtons 2nd law law that states that the acceleration of an object is equal to the net force exerted on the object's divided by the objects mass
friction a contact force that resists the sliding motion of two surfaces that are touching
free- body diagram simple model to understand what will happen to an object due to a force
net force combination of all forces acting on an object
newtons 1st law an object at rest will stay at rest, and an object in motion will stay in motion unless a force acts on thee subject
inertia an objects ability to resist any change in motion
newtons 3rd law when an object applies a force on another object the second object applies a force of the same strength on the first object but the force is in the opposite direction
force pairs the forces two objects apply to eachother
Normal force the force that pushes perpendicular to the objects surface.
elastic collision when colliding objects bounce off each other
inelastic collisions a collision where total kinetic energy is not conserved, but momentum is
non contact force a force that one object applies to another object without touching it
gravity an attractive force that exists between all objects that have mass
field a region of space that has a physical quantity ( such as a force) at every point.
weight the gravitational force exerted on an object.
Created by: user-2012120
 

 



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