Unit 2 Measurements

Question 1

conversion factor

Answer 1

a ratio used to convert one unit of measurement to another. it expresses the relationship between two units, such as inches to centimeters.

Question 2

significant figures

Answer 2

digits of a value, often in a measurement, that contribute to the degree of accuracy of the value

Question 3

quantity

Answer 3

property that is measured; has a magnitude (number) and a unit

Question 4

meter

Answer 4

the basic unit of length in the International System of Units

Question 5

measurement

Answer 5

quantitative information used in studying and practicing chemistry

Question 6

gram

Answer 6

one one-thousandth of a kilogram

Question 7

scientific notation

Answer 7

a useful tool for working with numbers that are either very large or very small

Question 8

density

Answer 8

mass per unit volume

Question 9

derived units

Answer 9

combination of two or more SI units

Question 10

conversion factor

Answer 10

a ratio used to convert on unit of a measurement to another. Ex: inches to centi

Question 11

kilogram

Answer 11

SI unit of mass

Question 12

volume

Answer 12

three dimensional- space occupied by an object

Question 13

milliliters

Answer 13

equal to one cubic centimeter

Question 14

percent error

Answer 14

the difference between experimental value and the accepted value and the accepted value in comparison to the accepted value

Question 15

unit

Answer 15

any standard used for making comparison’s in measurements; a standard for the measurement of physical quantities of the same kind

Question 16

mass

Answer 16

a measure of the amount of matter

Question 17

SI system

Answer 17

system of units measurements the is widely used all over the world

Question 18

dimensional analysis

Answer 18

used by chemist and other scientist to convert units of measurement