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19 Cards in this Set
- Front
- Back
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Speed
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Distance traveled divided by the time taken to travel the distance.
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Average Speed
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Dividing the total distance traveled by the time taken.
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Instantaneous Speed
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Speed of an object at one instant of time.
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Velocity
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Speed of the object and the direction of its motion.
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Acceleration
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Change in Velocity divided by the time it takes for the change to occur.
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Mass
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Amount of matter in the object.
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Inertia
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The tendency of an object to resist a change in its motion.
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Momentum
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Measure of how hard it is to stop an object.
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Law of Conservation of Momentum
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Total momentum of objects that collide is the same before and after the collision.
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Force
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Push and pull or mass times acceleration.
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Net Force
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Combination of all forces acting on an object.
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Balanced Forces
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Two or more forces exerted on an object/cancel each other.
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Unbalanced Forces
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Their effects don't cancel each other out.
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Newton's First Law of Motion
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Net force acting on an object is zero, the object remains at rest...if the object is moving it will keep moving in a straight line.
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Friction
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Force that brings nearly everything to a stop.
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Newton's Second Law of Motion
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Connects force, acceleration and mass...and objects acted upon by a force will accelerate in the direction of a force.
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Weight
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Gravitational force between you and Earth.
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Center of Mass
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Point in an object that moves as if all the objects mass were concentrated on that point.
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Newton's Third Law of Motion
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Forces always act in equal but opposite pairs...for every action there is an equal but opposite reaction.
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