Thermal Physics—Topic 3

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When you think of Heat, Thermal
Energy, and Temperature, what
comes to mind?
3 min: write on your own warm-up
sheet…one of your last few entries for
1st semester 
Print off topic outline by tomorrow.
Test on this unit will be Friday, Feb. 8, 2013
You will be completing 2-3 labs between now and then…
prepare for a fast unit!
Textbook Reference: Chapters 10 and 11. You WILL need your textbook
nearly every day for this unit. Bring one or share one.
All questions in this PowerPoint should be considered as things you
need to answer. Answer them in your notes and/or syllabus statement
book (under the proper statement) as if they were a worksheet to be
turned in.
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Clear work from each of the WebAssign problem
sets (there are 4 of them!)
Calorimetry Lab (CE and analysis questions)
 Please remember to attach the CE scoring sheet
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Gas pressure lab (DCP)
 Please remember to attach the DCP scoring sheet
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Thermometric Properties Design lab
 Please remember to attach the Design scoring sheet
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Topic 3 Syllabus Statements—thoroughly
completed using the notes/questions/resources
found in this power point and the other
supplemental notes posted.
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Syllabus statements 3.1.1-3.1.4
(which covers slides 7-13)
Every other slide will NOT be on the
semester 1 final exam. For the next week
or so, focus on the first 13 slides.
When 2nd semester begins, we’ll pick up
with slide 14 and continue with the syllabus
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The rest of this power point is filled with guiding questions
(and online resource links) to help you gather information for
all the syll. Statements for this unit
Take good notes (on your own…) related to each of the
questions on the slides.
You will NOT be getting lectures in class for this unit. We will
be going over clarifying questions and practice problems in
class. You MUST read notes ahead of time on your own!
There are, however, the presentations I used last year
posted online—use those as supplemental notes 
We WILL be doing 2 labs next week.
All syllabus statements must be completed by the beginning
of class on the day of the exam
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Please check WebAssign. There will be
several relatively short homework sets,
related to major topics in this unit.
All will be open until 7:25 AM on the day of
the test.
Don’t forget to do any of them!
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What are the units of temperature?
Which units of temperature are metric?
Which is the fundamental metric unit?
How do you convert between each of the
temperature units?
 Use the following resources:
Resource #1
Resource #2
Resource #3
HW#1: WebAssignThermal Physics 1: Temperature Conversions
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What IS absolute zero?
How was it determined?
What is the temperature of Absolute Zero in
the Celsius temperature scale?
Resource A
Resource C
Resource B
Resource D
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What does “Thermometric” mean?
There are several examples of these
properties. List and describe each of them.
 Resource #4
Homework #2: (due to turnitin.com no later than Friday, Feb. 8, 2013)
Design Lab: Design a lab to study the effect of temperature on a
variable related to your choice of thermometric property. (please be
specific about which thermometric property your are studying)
Use the IB “Design” rubric—score checklist will be posted soon.
Resource #5
Resource #6
Resource #8
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Resource #7
If you were to construct a thermometer, why
must you have 2 known, standard (fixed)
points with which to work?
Describe HOW you would calibrate (create
the accurate scale) a standard alcohol
thermometer that was originally blank (no
scale on it at all)
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Define the following:
 Thermal Energy (internal energy):
 Heat:
 Temperature:
Resource #9
Resource #10
Resource #11
 How is the direction of thermal energy transfer
determined? (3.1.1)
 Sketch and interpret a kinetic energy distribution
for a substance at various temperatures (see last
year’s notes… OR… Resource E Resource F
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Define/Describe each of the following:
 Conduction
 Convection
 Radiation
Note: concepts only—you don’t need to do any
calculations for any of these methods of energy
transfer
Resource #12 Resource #13
(also see Resource #10)
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Take notes on each of the demos completed
and discussed in class. I promise they are each
somehow related to one or more of your
syllabus statements. (unless told otherwise )
What is meant by “Heat Capacity”?
 What variables will affect the heat capacity of
a substance?
 Mathematically, how is heat capacity
determined? With what units?
Resource #16 Resource #17
 How is specific heat capacity “specific”?
 Mathematically, how is specific heat capacity
determined? With what units?
Resource #18 Resource #19 Resource #20
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Will be completed in class
Purpose: to determine the identity of an
unknown metal based only on the calculation of
its specific heat capacity.
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This will be a CE lab, but there will also be some
analysis questions to assist you in processing
your data. You will be receiving a procedure and
collecting data in class, and you will be writing a
conclusion discussing your results.
HW reminder! Calorimetry lab (data table and
analysis questions A-F) due on Friday, 2/8/2013!
Sample Problems: there is a Word Document posted with
practice problems (and answers)—not required to
complete all of them, but 3.2.2 asks you to complete some
problems…I’d recommend 2-3 be put in your syll. state.
Book.
HW reminder: WA Thermal problems #2—Calorimetry—is
available to complete
As is HW#3 (Molar mass practice) and #4 (phase changes)
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There are 3 primary phases of matter (we’re
not concerned with plasmas or Bose-Einstein
condensates at this point). Describe (and
compare/contrast) each based on the
following characteristics: (use last year’s notes)
 Molecular motion (i.e. kinetic energy—quantity
and type)
 Macroscopic properties (see Word document in
“notes” section online)
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Complete the following flow chart:
Energy Added
Solid
Liquid
Energy Removed
Gas
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What is meant by “Latent Heat”?
How is this different than “specific heat”?
What happens to molecules of a substance
while undergoing a change of phase?
What happens to the temperature of a
substance while undergoing a change of
phase?
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Sketch a heating (or cooling) curve for water,
showing the relationship between the
temperature of water and the time that passes
as thermal energy is being added (or removed)
at a constant rate
Heating curves should have proper labels
showing:
 Melting/freezing point
 Boiling/condensing point
 State of matter or process occurring during each
section of the graph
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What’s the difference?
Which one occurs AT the boiling point?
Which one occurs BELOW the boiling point?
HW reminder! WebAssign #4 (Phase changes and Gas
Laws) is available.
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What is a mole?
How is molar mass of an element
determined? (note: if you don’t have a
periodic table, let your teacher know…)
How is molecular molar mass determined?
What is Avogadro’s number? Where did it
come from?
Resource #14 Resource #15
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Look at last year’s notes for the required
summary of the “rules” an ideal gas will
follow under this model
Gas Laws:
 Boyle’s law (this was your lab last week)
▪ Resource #16
Resource #17
 Charles’ Law
▪ Resource #18
 Combined Gas law
▪ Resource #19 (pHet simulation)
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Individually collected data
Equipment will be available at the beginning
of 2nd semester.
Data collection must be completed by
Monday, Feb. 4.
Equipment will NOT be available after
Monday, Feb. 4
DCP will be due on the day of your exam
(Friday, Feb. 8)
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Clear work from each of the WebAssign problem
sets (there are 4 of them!)
Calorimetry Lab (CE and analysis questions)
 Please remember to attach the CE scoring sheet

Gas pressure lab (DCP)
 Please remember to attach the DCP scoring sheet

Thermometric Properties Design lab
 Please remember to attach the Design scoring sheet

Topic 3 Syllabus Statements—thoroughly
completed using the notes/questions/resources
found in this power point and the other
supplemental notes posted.
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