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| the rate at which velocity changes over time; an object accelerates if its speed, direction, or both change |
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| a description of how close a measurement is to the correct or accepted value of the quantity measured |
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| the total displacement divided by the time interval during which the displacement occured |
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| the acceleration directed toward the center of a circular path |
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| the ration of the magnitude of the force of friction between two objects in contact to the magnitude of the normal force with which the objects press against each other |
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| the projections of a vector along the axes of a coordinate system |
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| an experiment that tests only one factor at a time by using a comparison of a control group with an experiment group |
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| the change in position of an object |
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| the energy available for use when an elastic body returns to its original configuration |
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| in physics, the state in which the net force on an object is zero |
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| an action exerted on an object which may change the object's state of rest or motion; force has magnitude and direction |
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| a system for specifying the precise location of objects in space and time |
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| the motion of a body when only the force due to gravity is acting on the body |
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Term
| Gravitational Potential Energy |
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Definition
| the potential energy stored in the gravitational fields of interacting bodies |
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| an explanation that is based on prior scientific research or observations and that can be tested |
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| the tendency of an object to resist beign moved or, if the object is moving, to resist a change in speed or direction |
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| the velocity of an object at some instant or at a specific point in the object's path |
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| the energy of an object that is due to the object's motion |
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Definition
| the force that opposes the movement of two surfaces that are in contact and are sliding over each other |
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| the sume of kinetic energy and all forms of potential energy |
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| a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept |
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| a single force whose external effects on a rigid body are the same as the effects of several actual forces acting on the body |
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Definition
| a force that acts on a surface in a direction perpendicular to the surface |
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| the energy associated with an object because of the postion, shape, or condition of the object |
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| a quantity that measures the rate at which work is done or energy is transformed |
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| the degree of exactness of a measurement |
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| the curved path that an object follows when thrown, launched, or otherwise projected near the surface of the Earth |
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| a vector that represents the sum of two or more vectors |
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| a physical quantity that has magnitude but no direction |
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| those digits in a measurement that are known with certainty plus the first digit that is uncertain |
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| the energy available for use when a deformed object returns to its original configuration |
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Definition
| the force that resists the initiation of sliding motion between two surfaces that are in contact and at rest |
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| Work-Kinetic Energy Theorem |
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