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16 Cards in this Set
- Front
- Back
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connection between force and motion
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dynamics
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any kind of push or pull on an object capable of accelerating it
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force
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tendency of an object to maintain its state of rest or of uniform motion in a straight line
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law of inertia
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reference frame that hold by newtons first law usually fixed on earth
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inertial reference frame
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the measure of inertia of an object
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mass
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standard unit for mass
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kilogram kg
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standard unit for force
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newton
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the force perpendicular to the common surface contact and usually opposite of the weight
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normal force
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vector sum of all the forces acting on it
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net force
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diagram showing all forces acting on an object
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free body diagram
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pull of a flexible cord
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tension
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sliding friction
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kinetic
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non sliding friction
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static
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newtons first law
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every object continues in its state of rest, or of uniform velocity in a straight line, as long as no net force acts on it.
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newtons second law
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e acceleration of an object is directly proportional to the net force acting on it and inversely proportional to the mass. the direction of the acceleration is in the direction of the net force acting on the object
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newtons third law
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whenever one object exerts a force on a second object, the second exerts an equal force in the opposite direction on the first
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