week 1

Question 0

SI prefixes

Answer 0

giga mega kilo (unit) deci centi milli micro nano

gigantic mega kites (usually) dive centrally my mom noted

Question 1

Order of operations

Answer 1

please excuse my dear aunt sally

parentheses exponents multiplication division addition subtraction

Question 2

concentration percent equals

Eg. 1% lidocaine = __ mg/ml = __g/100ml

Answer 2

grams/100 ml

1% lidocaine = 10mg/ml = 1g/100ml

Question 3

concentration =

Answer 3

amount / volume

Question 4

amount =

Answer 4

concentration x volume

Question 5

solution

Answer 5

a homogenous mixture of two or more substances

Question 6

solute

Answer 6

the substance that is dissolved in a solution

Question 7

solvent

Answer 7

the component of a solution that is present in the greatest amount

Question 8

volume =

Answer 8

amount / concentration

Question 9

one inch =__ cm

Answer 9

2.54 cm

Question 10

2.54 cm = __ inches

Answer 10

1 inch

Question 11

1 mile = __ km

Answer 11

1.609 km

Question 12

1 mile = __ feet

Answer 12

5,280 feet

Question 13

1 pound = __ kg

Answer 13

0.454 kg

Question 14

1 pound = __ ounces

Answer 14

16 ounces

Question 15

1 ounce = __ grams

Answer 15

28.35 grams

28 and 1/3 gram crackers weigh about an ounce

Question 16

Kelvin = Celsius + __

Answer 16

273

Question 17

1 grain = __ milligrams

Answer 17

64.8 milligrams

Bullets come in grains, so a 1 grain bullet weighs almost 65 mg

Question 18

1 liter = __ dm^3

Answer 18

1

Question 19

1 gallon = __ liters

Answer 19

3.79 liters

Some people say you should drink about 3L of water a day, which would be a little less than a gallon

Question 20

1 ml = __ cm^3 = __ cc

Answer 20

1, 1

Question 21

density

Answer 21

mass / volume

Question 22

water has a density of __ g/ml OR __ kg/m^3 OR __ pounds/gallon

Answer 22

1.0 g/ml OR 1000 kg/m^3 OR 8.33 pounds/gallon

Question 23

specific gravity is the ratio between and object’s density and the density of water

Answer 23

any substance with a spec grav greater than 1 is more dense than water
spec grav less than 1 is less dense than water

Question 24

can these guys possibly be violinists

Answer 24

charles, temp, gay-lussac's, pressure, boyles, volume

Question 25

gay-lussac's law

Answer 25

if volume remains constant, pressure is directly proportional to temperature when the temp of a gas increases in a solid volume container, the pressure increases proportionally think of bringing an E tank from a cold loading dock in the middle of winter to a warm OR, the pressure will increase

Question 26

boyle's law (upside down B)

Answer 26

if temperature remains constant, pressure and volume are inversely related if temp remains steady, halving the volume where the gas is doubles the pressure like squeezing the ambu bag for susan boyle

Question 27

charles' law, the 18th century hot air balloonist

Answer 27

if pressure remains constant, volume is directly proportional to temperature thus applying heat to a gas increases the volume it will occupy

Question 28

Farhenheit to Celsius

Answer 28

F to C, minus 32, x 5, / 9

Question 29

Celsius to Fahrenheit

Answer 29

C to F, x 9, / 5, +32

Question 30

Great many kids have dropped (over) dead converting metrics multiple numbers profess

Answer 30

Giga mega kilo hecto deka (unit) deci centi milli micro nano pico

Question 31

After PEMDAS, solve from _ to _

Answer 31

left to right, the same way as you read a book

Question 32

multiplying or dividing TWO POSITIVE numbers OR TWO NEGATIVE numbers gives a __

Answer 32

positive -1 x -1 = 1 1 x 1 = 1

Question 33

multiplying or dividing a positive number and a negative number gives a __

Answer 33

negative -1 x 1 = -1 1 / -1 = -1

Question 34

to solve for a variable

Answer 34

``` apply the inverse operation x / 5 = 20 the inverse of division is multiplication so therefore multiply BOTH sides by 5 (x/5) x 5 = 20 x 5 x = 100 (100/5) x 5 = 20 x 5 ```

Question 35

apply PEMDAS except when the equation involves addition and subtraction as well as multiplication and division. In that case reverse the order of operations

Answer 35

F* = 10*C x 1.8 + 32 do the addition/subtraction first F* - 32 = 10*C x 1.8 then do the multiplication and division F* - 32 = 18 now apply the inverse of -32 to solve for F* = 18 + 32 F* = 50 10 C* = 50*F

Question 36

to solve for a square root on one side of the equation

Answer 36

square both sides of the equation to cancel it

Question 37

logs 10^2 = 10 x 10 = 100 how many times do you multiply a number to get the square? two log10 ( 100 ) = 2

Answer 37

log10 (100) = x how many times do you have to multiply 10 by itself to get 100? two x = 2

Question 38

``` antilog the antilog (2) = 10^2 = 10 x 10 = 100 antilog (3) = 10^3 = 10 x 10 x 10 = 1000 ```

Answer 38

antilog (4) = __

Question 39

negative exponents equal the reciprocal

Answer 39

``` 2^-1 = 1/2 3^-1 = 1/3 ```

Question 40

any number raised to a zero power equals 1

Answer 40

``` 3^0 = 1 4^0 = 1 ```

Question 41

to multiply two numbers with exponents, remember to turn the x thirty degrees to a + and then add the exponents

Answer 41

1^2 x 1^3 turn the x a little into a + 2 + 3 = 5 1^2 x 1^3 = 1^5

Question 42

to divide two numbers with exponents, remember to turn the / thirty degrees to a - and then subtract the exponents

Answer 42

1^2 / 1^3 turn the / a little into a - 2 - 3 = -1 1^2 / 1^3 = 1^-1

Question 43

electric current

Answer 43

ampere

Question 44

what is the SI unit for temperature?

Answer 44

Kelvin

Question 45

what is the SI unit for luminous intensity?

Answer 45

Candela

Question 46

what is the SI unit for amount of a substance?

Answer 46

Mole

Question 47

what is the SI unit for length?

Answer 47

meter

Question 48

what is the SI unit for mass?

Answer 48

kilogram

Question 49

what is the SI unit for time?

Answer 49

second

Question 50

Giga

Answer 50

1 x 10^9 | G

Question 51

Mega

Answer 51

1 x 10^6 | M

Question 52

kilo

Answer 52

1x10^3 | k

Question 53

deci, centi, milli, micro, nano

Answer 53

1 x 10^ -1, -2, -3, -6, -9 | d, c, m, mu, n

Question 54

mcg are to grams as uL (mu = micro) are to liters 1,000,000 mcg = 1 gram 1,000,000 uL = 1 liter

Answer 54

10^-6 liters = 1 uL (micro liter)