SMART PEOPLE: Physical Science?
1. Why is it improtant to have standards of measurements that are the same?
2. What are the SI prefixes for 0.001, 1,000, 0.1, and 0.01?
3. Make the following conversions- 100 cm to meters, 27 degrees celcius to Kelvin, 20 dg to milligrams, and 3 m to decimeters.
4. Explain why density is a derived unit.
PLEASE.
Favorite Answer
2: 0.001 is “milli”
1000 is “kilo”
0.1 is “deci”
0.01 is “centi”
3: 100cm is 1 meter
27 degrees celcius is 300kelvin
20 dg is 0.2 milligrams
3 meters is 30 decimeters
4: Usually, because it is convenient to do so, most
people simply assume that water at STP (to borrow from chemists) has a
density of 1gm/cm^3. That is not to say that water’s density is some
kind of standard.
2. not sure on this one
3. you need to look up
4. no help here.
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