Exam 1 / Weeks 1-3

Question 1

giga G

Answer 1

one billion 10^9

Question 2

mega M

Answer 2

one million 10^6

Question 3

kilo k

Answer 3

one thousand 10^3

Question 4

deci d

Answer 4

one tenth 10^-1

Question 5

centi c

Answer 5

one hundredth 10^-2

Question 6

milli m

Answer 6

one thousandth 10^-3

Question 7

micro u

Answer 7

one millionth 10^-6

Question 8

nano n

Answer 8

one billionth 10^-9

Question 9

tera T

Answer 9

one trillion 10^12

Question 10

T/F- nonzero integers always count as sig figs

Answer 10

true

Question 11

T/F- leading zeros always count as sig figs

Answer 11

false

Question 12

T/F- captive zeros always count

Answer 12

true

Question 13

trailing zeros count when?

Answer 13

only if there is a decimal point

Question 14

how many sig figs do exact numbers have?

Answer 14

unlimited

Question 15

Kelvin -> Fahrenheit

Answer 15

1.89(K-273.15)+32

Question 16

Kelvin-> Celcius

Answer 16

K-273.15

Question 17

Fahrenheit-> Celcius

Answer 17

(F-32)/1.8

Question 18

maintain the smallest number of sig fig in original measurements

Answer 18

multiplication and division

Question 19

results can be no more certain than the least certain measurements

Answer 19

addition and subtraction

Question 20

Kelvin- water boils at

Answer 20

373.15K

Question 21

Kelvin- water freezes at

Answer 21

273.15K

Question 22

Kelvin- lowest temp

Answer 22

0K

Question 23

Celcius- water boils at

Answer 23

100C

Question 24

Celcius- water freezes at

Answer 24

0C

Question 25

Celcius- lowest temp

Answer 25

-273.15C

Question 26

Fahrenheit- water boils at

Answer 26

212F

Question 27

Fahrenheit- water freezes at

Answer 27

32F

Question 28

Fahrenheit- lowest temp

Answer 28

-459.67F

Question 29

Volume cm^3=

Answer 29

mL

Question 30

Volume dm^3=

Answer 30

L

Question 31

procedure to test hypothesis; measures one variable at a time

Answer 31

experiment

Question 32

tentative proposal that explains observations

Answer 32

hypothesis

Question 33

tests predictions based on model

Answer 33

further experiment

Question 34

set of conceptual assumptions that explains data from accumulated experiments; predicts related phenomena

Answer 34

theory/ model

Question 35

natural phenomena and measured events; can be stated as a natural law if universally consistent

Answer 35

observation

Question 36

who created the atomic model?

Answer 36

J.J Thompson

Question 37

what is the atomic model called?

Answer 37

plum pudding

Question 38

who did the gold foil experiment?

Answer 38

Rutherford

Question 39

what year was the gold foil experiment?

Answer 39

1908

Question 40

what year was the atomic model theory?

Answer 40

1904

Question 41

when was the neutron discovered?

Answer 41

1932

Question 42

who discovered the neutron?

Answer 42

Rutherford and Chadwick

Question 43

Dalton’s Atomic Theory was what year?

Answer 43

1808

Question 44

Dalton’s Atomic Theory

Answer 44

• matter is composed of tiny indivisible particles called atoms
• all atoms of a given element are identical
• atoms of one element are different from atoms of any other element