While the concept of average velocity is critical to understanding kinematics, its reciprocal is also worthy of consideration. If students examine this ratio and its characteristics they will find is applicable in optics (Snell's Law) and geophysics.
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Reciprocal? What do you mean? If average velocity is m/s how is s/m useful for kids development?
ReplyDeleteSeconds for each meter that Arons calls "slowness" can have application in the study of refraction. I thought he included it because it would help model the slowing of light in later units.
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