# Speed

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Energy Unit: Speed

Definition of speed and its SI unit, instantaneous speed and how to calculate average speed and distance or time from speed.
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## Speed

by EPISD Physics //at grade
Definition of speed and its SI unit, instantaneous speed and how to calculate average speed and distance or time from speed.
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## Speed

by Joan Drobnak //at grade
Definition of speed and its SI unit, instantaneous speed and how to calculate average speed and distance or time from speed.
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• Real World Application

## Constant Speed and Average Speed

by CJ //at grade
Explore the differences in speed between a tortoise and a hair.
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