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# s8p3.a

### demonstrate the relationship between velocity and acceleration

TermDefinition
force a push or pull exerted on an object in order to change the motion of the object force has size and direction
motion an objects change in position relative to a reference point
reference point a stationary object that is used to describe an objects motion
speed the distance traveled divided by the time intervals during which the motion occurred
velocity the speed of an object in a particular direction
acceleration the rate at which velocity changes over time an object accelerates if its speed,direction or both changes
friction a force that oppose motion between two surfaces that are in contact
net force a force that oppose motion between two surfaces that are in contact
balanced force stated when the net forces acting on an object equal zero
unbalanced force stated when the net forces acting on an object is not zero
inertia the tendency of an object to resist being moved or if the object is moving th resist a change in speed or direction until and outside force acts on the object
gravity a force of attraction between objects that is due to their masses
work the transfer of energy to an object by using a force that causes the object to move in the direct of the force
machine a device that helps do work either by overcoming a force or changing the direction of the applied force
inclined plane a simple machine that straight ,slanted surface which facilitates the raising of loads a ramo
wedge a simple machine that is made uo of two inclined planes and that moves often used for cutting
screw a simple machine that consist of an inclined plane wrapped around a cylinder
pulley a simple machine that consist of a wheel over which a rope chair or wire passes
lever a simple machine that consist of a bar that pivots at a fixed point called a fulcrum
wheel and axle
Created by: 04shacha