2.3 Time, Velocity, and Speed
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10 Terms
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What is time in physics?
Time is the change or the interval over which change occurs.
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What is elapsed time?
The change in time, calculated as Δt=tf-t0
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What is Δt when t0=0 ?
Δt=tf=t
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What is velocity?
A vector quantity representing the speed of an object in a specific direction.
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How is average velocity calculated?
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What is Δx in the velocity formula?
Represents displacement.
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What is instantaneous velocity?
The average velocity at a specific instant in time.
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What is speed?
A scalar quantity with no direction.
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What is instantaneous speed?
The magnitude of instantaneous velocity.
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What is average speed?
Distance traveled divided by elapsed time.
Note 
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