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Physics Lab 1 Graph Matching Mr. Chin-Sung Lin

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Kinematics

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Kinematics is the branch of classical mechanics that describes the motion of objects without consideration of the forces that cause the motion

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Displacement A displacement (d) is a vector quantity A displacement represents the length and direction of the shortest distance from the initial to the final position of an object Displacement

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Displacement vs. Time The object is at rest at the origin t d d = 0, slope = 0

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Displacement vs. Time The object is at rest at location b t d d = b, slope = 0 b

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Displacement vs. Time The object is moving in positive direction at constant rate (velocity, v) from origin t d slope = v

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Displacement vs. Time The object is moving in positive direction at constant rate (velocity, v) from location b t d slope = v b

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Displacement vs. Time t d slope = v The object is moving in negative direction at constant rate (velocity, v) from origin

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Displacement vs. Time t d slope = v The object is moving in negative direction at constant rate (velocity, v) from location b b

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Velocity A velocity (v) is a vector quantity Velocity is the measurement of the rate and direction of change in the position/displacement (d) of an object v = d / t

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Velocity Velocity is the slope of the displacement-time (d-t) graph t d slope = v (velocity)

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Velocity vs. Time The object is at rest at the origin t d d = 0, slope = 0

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Velocity vs. Time The object is at rest at the origin t d d = 0, slope = 0 t v v = 0, slope = 0

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Velocity vs. Time The object is at rest at location b t d d = b, slope = 0 b

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Velocity vs. Time The object is at rest at location b t d d = b, slope = 0 b t v v = 0, slope = 0

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Velocity vs. Time The object is moving in positive direction at constant rate (velocity, v) from origin t d slope = v

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Velocity vs. Time The object is moving in positive direction at constant rate (velocity, v) from origin t d slope = v t v v = v, slope = 0

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Velocity vs. Time The object is moving in positive direction at constant rate (velocity, v) from location b t d slope = vb

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Velocity vs. Time The object is moving in positive direction at constant rate (velocity, v) from location b t d slope = vb t v v = v, slope = 0

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Velocity vs. Time t d slope = v The object is moving in negative direction at constant rate (velocity, v) from origin

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Velocity vs. Time t d slope = v The object is moving in negative direction at constant rate (velocity, v) from origin t v v = v, slope = 0

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Velocity vs. Time t d slope = v The object is moving in negative direction at constant rate (velocity, v) from location b b

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Velocity vs. Time t d slope = v The object is moving in negative direction at constant rate (velocity, v) from location b b t v v = v, slope = 0

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Acceleration A acceleration (a) is a vector quantity acceleration is the rate of change of velocity with time a = Δv / t

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Acceleration Acceleration is the slope of the velocity-time (v-t) graph t v slope = a (acceleration)

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