Chapters 1 and 2 Flashcards
(76 cards)
0
Q
What is the name for 10 to the 6
A
Mega
1
Q
What is another name for 10 to the 3
A
Kilo
2
Q
What is the name for 10 to the -1
A
Deci
3
Q
What is the name for 10 to the -2
A
Centi
4
Q
What is the name for 10 to the -3
A
Mili
5
Q
What is the name for 10 to the -6
A
Micro
6
Q
What is the name for 10 to the -9
A
Nano
7
Q
What is the abb. for a gram
A
g.
8
Q
What is the abb. for a meter
A
m.
9
Q
What is the abb. for liter
A
L.
10
Q
What is the abb. for kilo
A
k.
11
Q
What is the abb. for mega
A
M.
12
Q
What is the abb for deci.
A
d.
13
Q
What is the abb. for centi.
A
c.
14
Q
What is the abb. for milli.
A
m
15
Q
What is the abb for micro.
A
Mew
16
Q
What is the abb. for nano
A
n.
17
Q
What should never be used in a lab report
A
First Person
18
Q
What is the first step in the scientific method
A
Purpose
19
Q
What does the purpose do
A
The purpose tells what you are studying
20
Q
what is the format of purpose
A
the format is infinitive to verb
21
Q
What is the second step in scientific method
A
research
22
Q
what is the reason for research
A
to gain knowledge and info on the subject
23
Q
what is the third step in scientific method
A
hypopthesis
24
what is the reason for the hypothesis step
an educated guess
25
what is the format for the hypothesis step
if then statement or it is hypothesized that
26
what is the fourth step in the scientific method
conduct experiment
27
what is the reason for conducting an experiment
1. planning - procedure materials safety variables ect.
2. execution- observe changes in matter and record data
observations- qualitative(describe characteristics)
quantitative- (a measurement)
28
what is the fifth step in the scientific method
data and results
29
what is the reason for data and results
organize the work and data into charts graphs and calculations
30
what is the fifth step in the scientific notation
conclusion
31
what is the significance of a conclusion
```
to communicate 4parts
summarize lab purpose through results
discuss the hypothesis incorrect or correct
sources of error
3types
1 human
2 instrument
3 purity
relate lab events to lecture topics
```
32
what is the def of measurement
a number that shows how precise the tool used to measure the object is
33
what is the def of scientific notation
a equation created to condense large numbers that often appear in chemistry
34
what is the definition of mass
the quantity of matter present in an object
35
what is the definition for volume
the amount of three dimensional space occupied by a substance
36
what is the definition of density
a property of matter representing the mass per unit of volume
37
what is the definition of dimensional analysis
the changing from one unit to another via conversion factors based on the equivalence statements between units.
38
what is the definition of equivalence statement
the statement that states how many of one unit is in another
this has to have the same units as the question or it doesnt work
39
what is the def of conversion factor
one step problems that are meant to change the unit to the one in which you desire
40
what do positive exponents do
make numbers bigger
41
what do negative exponents do
make numbers smaller
42
is mass a weight
no weight is a force
43
what is the si measurement for mass
kilograms
44
what is the common unit for mass
gram or milligram
45
what are the tools used for measuring mass
triple balance beam
single pan
or analytical or digital scale
46
what is the si unit for length
meter
47
what is the common unit for length
millimeter
| centimeter
48
what is the tool used to measure length
meter stick
49
what is the si unit for temperature
kelvin
50
what is the common unit for temperature
degrees celcius
51
what is the tool used for temperature
thermometer
52
what is the si unit of measurement of volume for a regularly shaped object
cubic meters of meters cubed
53
what is the common unit of volume for a regularly shaped object
centimeters cubed or milliliters cubed
54
what is the instrument used to calculate volume
meter stick
55
what is the si unit of volume for a irr. shaped obj
cubic meters or meters cubed
56
what is the common unit for volume of a irr. shaped obj.
millileters
57
what is the tool used to measure the volume of an irr. shaped obj.
graduated cylinder
58
```
which count as sig figs
non zeros
trailing zeros
leading zeros
captive zeros
```
nonzeros
captive zeros
trailing zeros only when an explicit decimal point is shown
59
when finding sigfigs after adding /subtracting what do you count
decimal places
60
when multiplying and dividing you count what
total sigfigs
61
what are the five steps for dimensional analysis
1. question
2. equivalence statement
3. conversion factor
4. do the math
5. sigfigs
62
what is the freezing point for fahrenheit
32
63
what is the boiling point for farenheit
212
64
what is the freezing point for kelvin
273
65
what is the boiling point for kelvin
373
66
what is the freezing point for celcius
0
67
what is the boiling point for celcius
100
68
how do you convert kelvin to celcius
Tc= Tk -273
69
how do you convert celcius to kelvin
Tk= Tc+273
70
how do you convert celcius to farenheit
Tf= 1.80(Tc) +32
71
how do you convert kelvin to farenheit
Tf= 1.80(Tk) - 459
72
what does density need to be in
grams per millileter
| or grams per cm cubed
73
what does matter need to be in
grams
74
what does volume need to be in
millileters or cm cubed
75
what are the four steps for finding density
given
equation
substitution
answer
