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CHEM-0-PARDY Unit 1
CHEM-0-PARDYUnit 1
Rules
1. Mrs. Hurley makes all of the rules.
2. In the event of a tie, ruling goes to Mrs. Hurley.
3. Concerns, questions… see rule #1.
To play:
1. A team will select an available category and point value.
2. All teams will write a response in the form of a question.
3. The first team with the correct answer earns the points and chooses the next answer.
4. Points will be deducted for incorrect responses. (But only if you are called.)
To answer:
1. The team scribe may start writing your team’s response when Mrs. Hurley finishes reading the question.
2. For all responses, all teams will write the response in the form of a question on their dry erase board.
3. When you have finished writing, put down your dry erase board and your marker.
4. Each team member must raise their hands to signify the team has completed their answer.
5. The first team that Mrs. Hurley deems ready will be called on first.
6. The first team with the correct answer earns points and gets to choose the next question.
Let’s begin.
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$100
SIMetric
Conversions & Prefixes
Precision & Accuracy
Significant Digits
Potpourri
$500
These are the 5 standard SI
measurements that we will focus on this
year.SI $100
What are length, mass, quantity,
temperature and time?
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SI $100
This is the SI unit for expressing mass.
SI $200
What is grams?
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Waves $200
This is the SI unit for temperature.
SI $300
What is Kelvin, or sometime Celcius?
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SI $300
Density and Volume are example of this
type of measurement.
SI $400
What are derived?
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SI $400
1 cm3 and 1dm3 are equivalent to these
values in mL.
SI $500
What are 1mL and 1L respectively?
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SI $500
In descending order, pg, dag, mg, Mg, ng, kg
would be arranged like
this:
Metric $100
What isMg, kg, dag, mg, ng, pg
?
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Metric $100
Between a dag of gold or a dg of gold, you
would rather have this.
Metric $200
What is a dag of gold?
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Metric $200
Metric $300
This is the conversion factor you would use
to complete this calculation.
4.522 ns = _______ s
What is 1 ns/1x109s
or 1x10-9 ns/1 s?
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Metric $300
To complete the conversion,
0.98765 Mm =______ m you would move the
decimal point like this.
Metric $400
What is 6 places to the right?
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Metric $500
91,380.0 cm = ____ km
Metric $500
What is 0.913800?
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Metric $500
This means obtaining experimental values that are very close to an accepted value.
P-A $100
What is accuracy?
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P-A $100
If your lab measurements
are very consistent, they have good this.
P-A $200
What is precision?
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Light $200
The accepted value for the density of copper is 8.92 g/cm3.
You experimentally determine the density of a copper penny to be: 7.45 g/cm3, 7.44 g/cm3, 7.46 g/cm3
Your results may not be this, but they appear to be this.
P-A $300
What is accurate and precise?
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PA $300
These are a students lab results.
The relative absolute error is this.P-A $400
What is 0.95%?
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P-A $400
DOUBLE JEOPARDY
All teams tell me what you would like to wager up to
$1000.
The relative standard deviation
for this data is this.
P-A $500
Density g/mL
1 8.91
2 8.88
3 9.01
4 9.22
average 9.01
accepted value 8.92
What is 1.7%?
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P-A $500
90210 has this many
significant digits.
SD $100
What is 4?
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S-D $100
0.092711 has this many significant
digits.
S-D $100
What is 5?
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S-D $200
1011001.10Has this many
significant digits.
S-D $300
What 9 significant digits?
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S-D $300
9.4+10
S-D $400
What is 20?
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SD $400
0.025x 4.0
SD $500
What is 0.10?
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SD $500
2.22x104 + 3.33x102 =
Potpourri $100
What is 2.25x104?
Click Anywhere to Continue
Potpourri $100
The precise measurement of
liquid in this graduated cylinder
is this (in mL).
Potpourri $200
What is 475 mL?
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Potpourri $200
The measurement indicated by this arrow is
(in m).
1400.1 121.3
+ 100 Potpourri $300
What is 0.27 m?
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Potpourri $300
5.0 cm x 10.0 cm x 2.0 cm =
Potpourri $400
What is 100?
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Potpourri $200
4 types of reducible error
are.
Potpourri $500
What areMethods/procedures
EquipmentJudgment (human error)
Mistakes
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Potpourri $500
FINAL JEOPARDY
All teams tell me what you would like to wager.
Byrd and Snuphy collected the following data during their density of
copper lab.
Based on a quantitative error analysis, he would be the better lab
partner.
Who is Byrd?
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Snuphy Byrd
1 8.71 8.91
2 8.88 8.93
3 9.01 8.95
4 9.22 9.30
average 8.96 8.95
accepted value 8.92 8.92absolute error 0.035 0.03
relative absolute error (%) 0.39 0.34
Byrd's relative error is less than Snuphy's relative error so Byrd's data is more accurate.
standard deviation 0.22 0.20relative standard deviation
(%) 2.4 2.3
Byrd's relative standard deviation is less than Snuphy's, so Byrd has more precision.
