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9 Cards in this Set
- Front
- Back
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position
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the location of the particle with respect to a chosen reference point that we can consider to be the origin of a coordinate system
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displacement (of a particle)
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the change in position (Δx=xf-xi) in some time interval
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distance
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the length of a path followed by a particle
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vector quantity
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requires the specification of both direction and magnitude
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scalar quantity
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numerical value and no direction
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average velocity (of a particle)
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the particles displacement (Δx) divided by the time interval (Δt)
p27 |
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average speed
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the total distance travelled divided by the total time interval required to travel that distance
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(instantaneous) velocity
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the limiting value of the ratio Δx/Δt as Δt approaches 0. also called the derivative of x with respect to t, written as dx/dt.
p29(2.4)(2.5) |
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instantaneous speed
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the magnitude of its instantaneous velocity
(no direction and no algebraic sign) |
