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9Sci CH 4

Acceleration & Momentum

QuestionAnswer
Air resistance frictional force air exerts on a moving object
Artificial satellite man-made device that orbits the Earth used for communication, science, weather, military and location monitoring
Centripetal acceleration acceleration toward center of a circle by an object moving along a circular path
Centripetal force force that causes an object moving along a circular path to move toward the center of the path
Law of conservation of Momentum total momentum of a group of objects is conserved unless a net force acts upon those objects
Momentum a property of any moving object
Momentum (p) =mass times velocity; p=mv
Newton’s Second Law of Motion describes acceleration of an object in the direction of the net force applied to it
Newton’s Second Law of Motion Force (F)=mass (m) x acceleration (a); F=ma
Newton’s Third Law of Motion action/reaction
Newton’s Third Law of Motion for every action force, there is an equal and opposite reaction force
Projectile any object shot or thrown through the air
Terminal velocity greatest velocity reached by a falling object
Created by: hockettd