Honors Physics Exam #2 Review: Motion and Free Fall

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22 Terms

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Velocity
Speed combined with direction of motion.
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Positive Velocity
Indicates motion in the positive direction.
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Negative Velocity
Indicates motion in the negative direction.
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Zero Velocity
Represents a turning point in motion.
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Free Fall
Motion influenced only by gravity.
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Acceleration of Gravity
g = 9.8 m/s² near Earth's surface.
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Speeding Up
Occurs when velocity and acceleration have same sign.
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Slowing Down
Occurs when velocity and acceleration have opposite signs.
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Velocity-Time Graph
Graph showing velocity against time.
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Displacement
Change in position, ∆x = xf - xi.
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Positive Displacement
Area above x-axis on velocity-time graph.
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Negative Displacement
Area below x-axis on velocity-time graph.
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Total Displacement
Positive Displacement - Negative Displacement.
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Total Distance
Positive Displacement + |Negative Displacement|.
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1D Motion Formula
v(t) = v0 + at.
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Initial Velocity
v0, starting speed of an object.
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Final Velocity
v, speed of an object at a later time.
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Initial Position
x0, starting location of an object.
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Final Position
x, location of an object at a later time.
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Maximum Height
Point where velocity of a rising object is zero.
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Coordinate System
Reference framework for analyzing motion.
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Reality Check
Ensure answers are logical and consistent.