Write an explanation of the steps you use to convert a measurement in one unit to a measurement in another.

Question

1) How many picometers are there in a kilometre?

Answer 1

Wow, actually had to look up what a picometre is.
Found that unless you are measuring diameters of atoms, you would never ever come across using that unit.

Unless I miscounted zeros
there would be 10^15 picometres in 1 km.

check this page
http://en.wikipedia.org/wiki/Metric_system#Prefixes

so 1 m = 10^12 pm
and there are 1000 m in 1 km,
1 km = 10^3 x 10^12 = 10^15 pm

Answer 2

how many picometers are there in a kilometre?

The answer is 10^-15
or
10^15? Thanks

Answer 3

10^15 is a huge number, so a whole bunch of things

10^-15 is a tiny, tiny, tiny number

Now wouldn't there be a whole bunch of those little tiny pm's in a km?

Answer 4

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