science vocab- Physics
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motion | an objects change in position relative to a reference point
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speed | the distance traveled divided by the time interval during which the motion occurred
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velocity | the speed of an object in a particular direction
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acceleration | the rate at which velocity changes over time; an object accelerates if its speed, direction, or both changes
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force | a push or a pull exerted on an object in order to change the motion of the object; force has size and direction
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newton | the SI unit for force
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net force | the combination of all of the forces acting on an object
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friction | a force that opposes motion between objects that is due to their masses
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gravity | a force of attraction between objects that is due to their masses
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Terminal Velocity | the constant velocity of a falling object when the force of air resistance in equal in magnitude an opposite in direction to the force of gravity
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Free Fall | the motion a body when only the force of gravity is acting on the body
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Projectile Motion | the curved path that an object follows when thrown, launched, or otherwise projected near the surface of Earth
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Inertia | the tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction until an outside force acts on the objects
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Energy | the capacity to do work
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Kinetic Energy | the energy of an object that is due to the object’s motion
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Potential Energy | the energy that an object has because of the position, shape, or condition of the object
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Mechanical Energy | the amount of work an object can do because of the object’s kinetic and potential energies
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Energy Conservation | a change from one form of energy to another
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Law of Conservation | the law that states that energy cannot be created or destroyed but can be changed from one form to another
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Nonrenewable Resource | a resource that forms at a rate that is much slower than the rate at which it is consumed
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Fossil Fuel | a nonrenewable energy resource formed from the remains of organisms that lived long ago
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Renewable Resource | a natural resource that can be replaced at the same rate at which that resource is consumed
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Created by:
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