Chemistry Unit 2.3

international system of units; universal; based on multiples of 10

7 (6 are used in chem)

length (m)

mass (kg)

volume (L)

temperature (k)

time (s)

amount of substance

show multiple or fraction of base units

1000x larger than base unit (10^3)

10x smaller than base unit (10^-1)

100x smaller than base unit (10^-2)

1000x smaller than base unit (10^-3)

1 millionx smaller than base unit (10^-6)

1 kilometer

100 centimeters

1000 milimeters

1 x 10^6 micrometers

space occupied by a sample of matter; length x width x height; cm^3

1 cubic centimeter

1000 milliters

1000 cubic centimeters

1000 grams

1000 milligrams

the pull of gravity on a given mass - varies depending on location

measure of a quantity of matter. is always the same regardless of location

1000 milliseconds

direction of heat transfer

heat moves from the object with higher temperature to lower temperature

they expand (except water)

based on 100 equal divisions between the freezing point and boiling point of water

based on absolute zero, freezing point of water, and boiling point of water

0 celsius + 273 K + 32 F

100 C + 373 K + 212 F

-273 C + 0 K

k = c + 273 ; c = k - 273

180 divisions between freezing point and boiling point of water

f = 1.8(C) + 32 ; c = (F - 32) / 1.8

combinations of different units

length x width (cm^2)

length x width x height (cm^3)

grams per milliliter (g/mL) or grams per cubic centimeter (g/cm^3)

meters per second (m/s)

measured numbers plus one estimated number

distance between 2 points

amount of matter in a substance

amount of space an object occupies

interval between 2 occurences

average kinetic energy

water displacement

electric scale / balance