1.3 Test Your Idea

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14 Νοε 2013 (πριν από 3 χρόνια και 7 μήνες)

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1.3 Test Your Idea


At this point you may have concluded that,


“Different observers see the same motion differently”.


Another way of saying this is that,
“Motion is relative”.


Consider the following experiment:


Your friend carries an object and
walks in a westerly direction.


a) Based on what you know about relative motion,
predict
what you would need to do


to make the object appear stationary (not moving). Write your prediction and explain




your thinking.


b) Use the idea of relativ
e motion to
predict
what you need to do to see the object as


moving in the easterly direction. Write your prediction and explain it.


c) Perform the experiment.


d) Make a judgment about whether the idea that motion is relative was supported or


disproved by your experiment. Explain.