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SI units + Prefixes
Reviewing metric prefixes and SI units of measure
Question | Answer |
---|---|
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 |