CHAPTER 5? LOOOOOOOOOOL
1meter
1 yard
Fahrenheit (°F)
A temperature measurement where water freezes at 32° & boils at 212°.
1L
1quart
1in
2.5cm
1kg
2lbs
1oz
30grams
5km
3miles
metric system
A decimal system of weights and measures based on the meter and on the kilogram.
percent error
A measure of how inaccurate a measurement is, standardized to how large the measurement is. Formulas vary
Scientific Method
A method for representing a very large or very small number and for easily indicating the number of significant figures.
KELVIN(K)
A metric unit of temperature measurement where 0° is considered absolute zero absolute zero - theoretical lowest possible temperature
Celcius (°C) also Centigrade
A metric unit of temperature measurement where water freezes at 0° and boils at 100°.
Measurement
A quantitative observation
SI units
International System of units based on the metric system and on units derived from the metric system.
significant figures
The certain digits and the first uncertain digit of a measurement.
precision
The degree of agreement among several measurements of the same quantity; the reproducibility of a measurement.
accuracy
The measure of how close a value is to the correct value.
English system
The measurement system used in many countries including the United States using feet, pounds and seconds.
units
The part of the measurement telling us the scale being used.
dimensional analysis
The process of using conversion factors to change from one unit to another. (also called Factor-Label Method or the Unit Factor Method)
mass
The quantity of matter in an object. (SI unit based on kilogram)