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Physics 7 Online
OpenStudy (anonymous):

Can you compare a known quantity with an unknown quantity in making measurements? Why or Why not?

OpenStudy (chmvijay):

for example ?

OpenStudy (anonymous):

There was no example given

OpenStudy (festinger):

It might be possible. I'll take length as an example. The teacher wants me to determine the length between 2 floors in a building (unknown) but I am only given a ruler. With this tool I can measure the height of each step on the staircase (known) and thus deduce the unknown of the height between 2 floors to reasonable accuracy.

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