Harmsy's Physics

Quantities & Units

When we use money, we sometimes forget that we use units of pounds or pence, euros and cents, etc.

In money that's not a real problem. As long as we're in the same country, people know what we mean.

e.g. "That comes to 9 99" is understood to mean "That comes to 9 pounds 99 pence".

In Physics, however, it is essential that we are clear what we are talking about, since there are so many different physical quantities.

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