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Force and Motion

QuestionAnswer
cause An event or process that leads to a result or change
Effect A result or change that happens because of an event or process
Equal The same in quantity, size, degree, or value
Exert To apply a force
Force A push or pull that can change the motion of an object
Infer To reach a conclusion using evidence and reasoning
Opposite Acting or going in the reverse direction
Balanced forces Two or more forces acting on an object in opposite directions and equal magnitude
Unbalanced forces Two or more forces that act on an object with different magnitudes in any direction
Net force sum of all forces acting on an object
Kinetic Energy Energy that an object has cause it is moving
mass The amount of matter that makes up an object
matter Anything that has mass and takes up space
speed How fast an object is moving
velocity Speed in a particular direction
Potential Energy Energy stored in an object or system of objects
Acceleration A measure of the change in velocity of a moving object
Collision The movement when two objects hit each other
Friction A force between an object and the surface it is moving over
Static Friction The force that prevents a stationary object from moving
Sliding Friction Friction that acts on objects when they are sliding over a surface
Rolling Friction Friction that acts on objects when they are rolling over a surface
Fluid Friction The force that resists the motion of an object moving though a fluid such as liquid or gas
air resistance A force that acts in the opposite direction of a moving object and is a type of friction
Newtons 1rst law of motion An object at rest remains at rest, or an object in motion remains in motion unless acted upon by an outside force
interia the tendency of a body to resist a change in motion or rest
newtons 2nd law F=ma, or net force is equal to mass times accelration
Newtons 3rd law every action has an equal and opposite reaction
Created by: user-2002998
 

 



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