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# SI units + Prefixes

### Reviewing metric prefixes and SI units of measure

The SI system is based off of what system metric
Trailing zeroes with a decimal , Non-Zeros, and Trapped Zeros are _______ signficant always
Leading and Trailing zeroes without a decimal are _______ significant never
The closeness of a series of values precise
Getting close to the expected or accepted value accurate
(difference)/ accepted value x 100% percent error
SI unit for time seconds
SI unit for length meter
SI unit for mass kilogram
SI stands for this International System
SI unit for temperature Kelvin
a count or math definition/conversion are 2 conditions for this infinite/unlimited significant figures
Mass divided by volume is the formula for .... density
the SI unit for volume cubic meters
is the product of a coefficient times base of 10 scientific notation
Kelvin temperatures can NEVER have this type of degrees negative
To convert Celsius to Kelvin add 273
To convert Kelvin to Celsius subtract 273
temperature where all molecules stop moving Absolute Zero ( O K )
measure of how hot or cold an object is temperature
100 times larger hecto (h)
100 times smaller ( 1/100 ) centi (c)
non-SI unit for volume Liter (L)
1000 times smaller ( 1/1000 ) milli (m)
1000 times larger kilo (k)
10 times larger deca (da)
10 times smaller ( 1/10 ) deci (d)
grams, Liters, meters, seconds are examples of this base units
is a ratio of equivalent values Ex. 1 year = 365 days conversion factor
order of math operations P E M D A S
always includes a number and a unit measurement
The SI and metric system are based on multiples of this number 10
Base units have this number value 1