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2 Unit Matter

matter & msmt vocab

QuestionAnswer
Density The ratio of mass to volume which indicates the spacing of the particles in the substance
SI - International system of measurement The measurement system accepted worldwide. Also known as the metric system.
Volume The amount of space occupied by an object
Accuracy How close a measurement is to the true/accepted value
Percent Error A value calculated by subtracting the experimental value from the accepted value, dividing the difference by the accepted value, and then multiplying by 100
Precision How closely a set of repeated measurements are to each other
Scientific Notation numbers written in the form Mx10^n where the factor M is a number greater than or equal to 1 but less than 10 and n is a whole number
Matter anything that has mass and takes up space
state of matter solid, liquid, or gas
solid state of matter where the particles have low energy and are spaced closely together
liquid state of matter where the particles have enough energy to slide past each other
gas state of matter where particles have so much energy they spread apart and fill the container
mixture a blending of two or more substances in the same container
pure substance a substance in which all of the particles are identical
element a substance containing only one type of atom
compound two or more different elements that are chemically bonded together.
particle diagram a diagram that shows the arrangement of atoms in a substance
physical property/change a description of how a substance appears or changes in appearance but but not in identity
chemical property/change a description of how a substance can undergo a change in identity due to the rearrangement of atoms
mass the amount of matter in an object
conversion factor/conversion fraction a fraction created from two measurements that are equal to each other which is used to convert from one unit to another
factor label method/dimensional analysis a calculation method that uses conversion factors to change from one unit to another
Created by: kost
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