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Forces Unit

QuestionAnswerQuestionsAnswersQuestionsAnswers
Law of Conservation of Momentum the total momentum of any group of objects remain the same unless outside forces also act on the objects Magnitude the amount (size) of a measurement Newton's First Law of Motion Objects at rest will stay at rest and objects in motion will stay in motion at a constant velocity unless acted on by an unbalanced force
Force a push or a pull that gives energy to an object Friction a force that one surface exerts on another when the two surfaces are in contace with each other Newton's Second Law of Motion The net force acting on an object is equal to the product of the object's mass and acceleration
Units of Force forces are measured in Newtons;N Kinetic Friction friction between moving objects Newton's Third Law of Motion For every action force there is a reaction force that is equal, but acts in the oppisite direction
Net force the total of all forces avtion on an obect Sliding Friction friction between objects that slide (rub) agains each other Law of Universal Gravitation All objects in the universe are attracted to each other; strength of attraction depends on the objects' masses and distance form each other
Inertia the tendency of matter to resist a change in its motion Rolling Friction Occurs when and object rolls over a surface Freefall The motion of an object when GRAVITY is the only force action on it
Centripetal Force The Force that is pulling an object in circular motion towards the center of the circle
Geosynchronous Orbit Occure when an object orbits another object at a rate equal to the 2nd object's rate of motion
Momentum the product of an object's mass and its velocity Balanced force(S) the net force acting on an object is zero Terminal Velocity The greatest velocity of a falling object; occurs when the force GRAVITY is EQUAL to the force of FRICTION
Formula fot momentum M = pv Un balab=nced force(S) the net force acting on an object is not zero Weight A measure of the force of GRAVITY on an object
Static Friction friction between non-moving objects Fluid Friction Occurs when an object moves through fluid or a gas Mass The amount of matter in something
Created by: Lyndsey20
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