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| the rate at which the position of an object changes |
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| the rate at which velocity changes |
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| 3 velocity/acceleration formulas |
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A ball is thrown straight up in the air. When air resistance is ignored, which of the following is true at the ball's highest point?
I. The velocity is zero
II. The acceleration is zero
III. The acceleration is directed downward |
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| one number needed to completely quantify it (time, temperature, mass, energy) |
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| needs more than one number to quantify it (three dimensional) ie; velocity |
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| vertical vector component |
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| horizontal vector component |
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| the matter stays in a state of rest if it is currently at rest and it stays in a state of constant speed in a straight line if moving |
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| an object will stay in motion at constant speed if in motion or will stay at rest if at rest until an object is acted upon |
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| the force between two surfaces that acts perpendicular to the surface |
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| the force exerted between two surfaces that acts parallel to the surface |
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| when two surfaces experience a sliding stress but don't actually move |
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| when two surfaces do slide over eachother |
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| every action has an equal and opposite reaction |
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| acceleration directed toward the center |
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| net force acting toward the center of an object moving in a circle |
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| how big the force is, how far from the pivot the force is applied, direction in which the force is applied |
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| formula for centripetal acceleration |
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| when a force acts on an object while a displacement occurs |
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| rate at which work is done (watt) |
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