ap physics c lab manual - hmvb.orgap physics c 1112 - lab manual 3 late submissions are not...

MARC GARNEAU COLLEGIATE INSTITUTE

AP PHYSICS C

CLASS 1112

FALL 2011

INSTRUCTOR: MR. H. M. VAN BEMMEL B.SC. (HONS), B.ED.

LABORATORY MANUAL

REVISION 9 – SEPTEMBER 2011

2 v. Bemmel

1 LABORATORY EXERCISES 1.1 Description of Labs

There will be five labs and one computer simulation in the fall semester. These labs will be

performed independent from class time. You will work in groups of your choice that are not larger

than four members. The data collection aspect of these labs must be performed during the 1 ¾ -hour

lab period offered Monday to Friday after school. Analyses can effected in any location of

convenience to you and your lab group.

The details of the experiments and the project will be made clear when this document is released

to the class on the first day of school. Full use of your graphing calculator, Maple, Excel and possibly

some programming will be necessary to complete some of the analysis required for these labs. Here is

your chance to be a scientist!

You are expected to design the procedures and analysis for each experiment. You will be marked

on how well you first conform to the requirements of form and the basic academic constraints of the

experiment and then on how you handle the more subtle and technical aspects. This is a measure of

your scientific acumen and creativity. Yes, you can do more, but does it really contribute to the

experiment? You need to weigh all of this very carefully. You will not have time to waste in your

laboratory experience in university (or professional life) so find ways to check that you are on the

right track before you waste a lot of time.

1.2 Lab Paper Submissions Policy

Below you will be deadlines for the submission of the formal report for each lab experience. To

save paper and facilitate archiving the submission policy is being changed for class 1112. This year

the submission policy requires ONE hardcopy and one soft copy in .pdf format. The soft copy will be

archived. The soft copy MUST be in .pdf format so that the format you intended is preserved.

1.2.1 AP Physics Paper Submission Checklist

1. Is your paper complete? Does it address ALL aspects of the experiments requirements as

set out in this document?

2. Does your paper conform to the AP Physics format standard?

3. Did you include and properly handle uncertainties in your data, regression and

computations?

4. Did you print your report on both sides?

5. Did you print out a marking rubric?

6. Did you produce a signature page and have it signed by all group members?

7. Have you prepared your notebook for submission? Could your write a formal report from

the data and comments in your notebook contents for this experiment?

8. Have you emailed your soft copy (.pdf) to Mr. van Bemmel before the appointed hour?

AP Physics C 1112 - Lab Manual 3

Late submissions are NOT acceptable without proof of insurmountable difficulties for all 4

members of the group. Prevent this by having the report stored on more than one computer or on a

web page and prepared a few days in advance.

1.3 Marking Rubric

On the next page is a copy of the rubric that will be used to grade your formal lab reports.

Comments from Mr. van Bemmel will be copiously written on the report and a short discussion will

be had with each group when the report is returned. This may have to happen outside of class

depending on our schedule. Students who wish further input should make an appointment with Mr.

van Bemmel at a time of mutual convenience.

Although Mr. van Bemmel will guide you and answer specific questions related to form and

other aspects of a paper, he will not “go over the report” prior to handing it in. You get one chance

for your mark. You are expected to read EVERY WORD of the lab manual and the course profile

that pertain to submission format and use it properly.

1.4 Lab Notebooks

You must submit your lab notebook along with your formal report. One Notebook per

report please.

4 v. Bemmel

Lab: 1 2 3 4 Submit signature page on reverse

Student1 : _____________________ Student2 : _____________________

Student3 : _____________________ Student4 : _____________________

CATE

GORY

SUB CATEGORY DESCRIPTION MARK

CO

MM

UN

ICA

TIO

N

SYNTAX Spelling and Grammar including proper tense of expression

2

FORM – GRAPHS

AND CHARTS

Do your graphs and tables follow the guidelines? Did you put a caption beneath

each one? Are they numbered? Are they well presented? Are they necessary? Your

tables should not break at the end of a page. Did you remember the index column?

Are your graphs scaled properly and with the proper format? Have you included

error bars as required?

FORM –

EQUATIONS AND

MARGINS

Are your equations properly presented? Are the variables defined with the

expected units included? Are variables only defined on first use? Are your equations

numbered with the number well off to the right? Did you source them as required?

Do your margin and columns conform to the rules? Is the font properly chosen?

Are you using the correct size of paper and did you set up the first page as per the

exemplar.

Does your report conform to the length rules?

Is your report free from silly computer glitches such a widows, orphans, and

large gaps in the text? You must fix all of this.

Did you email the .pdf copy of your work to your instructor prior to the due time?

Did you print your work on BOTH sides of the paper? Did you submit a single page

on the back of the marking rubric, detailing the work of the team members and

include signatures of all?

FORM –

CITATIONS AND

SOURCES

Have you cited any facts not fairly earned by your team? Are they cited in the

proper manner described in the lab manual? Did you list all your sources? Are the

sources conveyed in the proper format? Did you include at least TWO text sourcings?

NOTEBOOK Is your notebook so well organized and does it contain enough information for

me to write your formal report without other references? Your notes must be written

in PEN 2

KN

OW

LE

DG

E

UNCERTAINTY Have you indicated the uncertainty of your measured, computed and regressed

values? Has this been done according to the rules as stipulated in the manual? Have

your uncertainties been stated in the proper format? 2

1 ABSTRACT Is this abstract written in the proper form? Is it a fair description of this work and

its accomplishments? Is it a reasonable length? Does the abstract use some of the

most impressive numerical values to buttress its claims?

INQ

UIR

Y

METHODOLOGY

How have you used the equipment available to you? Have you maximized the

precision and possibly the accuracy of your work? Did you know that you were doing

this? Did you waste undue time on lengthy, but not effective or productive

techniques? 3

2

BASIC CONTENT Were the basic questions of the experiment answered? Were all the stated

requirements met?

ADVANCED

ANALYSIS

How aggressively did the report discuss the subtle relationships? How well were

numerical relationships between variables developed and explained? How creative

was the work presented via written text, graphs, tables and such like.

(I really care about this folks!)

TOTAL GRADE /12 %

FORMAL REPORT MARKING RUBRIC – LABORATORY PAPERS APC1112


Signature Page

Please sign and indicate what each person did.

SIGNATURE NAME CONTRIBUTION

6 v. Bemmel

2 THE EXPERIMENTS

Note: ALL submissions are due before 1200 hrs on the appointed day.

Lab Topic Due Date

1 Mechanics 28 Sep 2011 (Wed)

1A Collision Simulation 11 Oct 2011 (Tue)

2 Pendulum 24 Oct 2011 (Mon)

3 DC Electricity + AC Intro 16 Nov 2011 (Wed)

4 AC and Electromagnetism 12 Dec 2011 (Mon)

5 Wave Theory and QM 20 Jan 2011 (Fri)

(Data Collection must occur

Prior to 24 Dec)

SPECIAL NOTE:

I have spent some time investigating an interesting and useful experiment to perform in the Interference

and Quantum Mechanics sections of our course. As of this writing, this is a work in progress. I have decided

that this experiment will NOT be assigned this year.


EXPERIMENT 1 – MECHANICS

SOUP CAN ROLL

BASIC

REQUIREMENT

You must use two cans of soup. One is a consommé and the other is a

cream soup. The cans must have the same-labelled mass and have the same

dimensions at least to eye. It is better if the soups chosen do not have chunks

of material in them.

These cans are to be rolled down two ramps and then on to a flat surface.

The slope must be otherwise smooth and so must be the floor. One slope is to

be slight permitting the consommé can to roll further. The other must be

much steeper and result in the cream soup rolling further. You may have to

cover the slopes with some material to prevent the can from slipping. You

may also modify the floor ramp interface to allow the can to smoothly

transfer from the ramp to the floor without appreciable bouncing. (If you

think this matters)

In either case, one soup can will roll further than the other. Why? I want a

complete analysis of the energy that is imparted to these cans and where it

goes. What is going on inside the cans? What is the reason for the variation or

lack thereof in the results from the two ramps? Justify your theory with some

intelligent analyses. Full uncertainty analysis is expected. Innovative

techniques to obtain better results are of interest.

ESSENTIAL

REPORT

INFORMATION

Your report will follow all the constraints given in the course package.

However, it will also conform to the page limit set forth below. Using

appropriate and reasoned analysis your report must answer the question as

why one can rolled further (in both experiments) and discuss using

mathematical models the probable situation inside the cans during both

experiments as can be inferenced by motion of same.

PAGE LIMIT 4 pages + 1 page with the marking rubric on one side and a signature page

on the reverse indicating the duties performed by each member. Please print

them on BOTH sides of the paper.

EQUIPMENT

RESTRICTIONS

Only equipment found in the school lab or reasonable contents of a

student’s pencil case are permitted. Experiment data must be collected at the

school using the aforementioned equipment unless express permission to the

contrary has been secured. Analyses can be performed in any location.

DUE DATE Not later than 1200 – 28 September 2011 – Wednesday – No Extensions

SUBMISSION TYPE

1. Paper. Double-sided. Attached should be the signature page and

the, include the formal report marking rubric found in this

document. On it you need to indicate the aspects of the lab to which

each member contributed and bears the signatures of all group

members as an indication of agreement with this workload

distribution.

2. .pdf file sent by email. This email must be time tagged prior to

the established due date. This file will be archival. It should

absolutely identical to the paper submission.

NOTE: if there are differences between the paper and .pdf submissions, I

will mark the poorer of the two papers.

GROUP SIZE Not more than 4 people. No gender ratio restrictions. Groups may be

changed for subsequent labs.

8 v. Bemmel

EXPERIMENT 1A – MECHANICS

COLLISION SIMULATION

BASIC

REQUIRE-

MENTS

You will write a simulation using code in C, C#, Visual C or C++ that will simulate a two dimensional

collision.

This code will first verify itself solving a 2D collision that is first head on with a motionless target, then a

glancing collision with a motionless target. The verification is taken from a photocopy of a worked problem

or an example from a text book that will show conclusively that your program is producing comparable

results The program will then analyze the situation where the target is moving.

This is a challenging problem algebraically, but it can be done using a simulation. It is a problem that you

can intrinsically understand and thus find the benefit of producing a simulation for these types of problems.

The real problem you will face here is how to model the actual events around the collision itself. We know

that the materials compress for very short time span and spring back. Assume for this experiment that your

collisions are elastic.

Since our laboratory equipment is limited in this area, you will use a spherical stress ball, map out its

compressive properties, and use these in your simulation.

BONUS: You may choose to include the rotation of the objects either as an initial condition and/or because

of their impact for a maximum 20% bonus, but it must be done properly and with sound reasoning and most

importantly as a simulation not a rendering. For clarity consider my primer on Simulations which can be

found on my web page www.hmvb.org (general address)

ESSENTIAL

REPORT

INFORMA-

TION

Submission format: Your submission must include.

1. A complete listing of your code including reasonable documentation

2. Print outs of the Excel plots of the solutions generated by your program.

3. Photocopies of the sample problems you have used to verify the operation and accuracy of your

program.

4. Photocopy of a 2D glancing collision with a moving target

5. No marks or consideration given for any GUI work regardless of the quality

6. A block diagram (Flow chart) of what your program is doing to produce the data.

7. Analysis of the stress ball spring constant experiment including any uncertainties. Is it linear etc? Is k a

value or function?

PAGE LIMIT

Not enforced

EQUIPMENT

RES-

TRICTIONS

Only equipment found in the school lab or reasonable contents of a student’s pencil case are permitted.

Experiment data must be collected at the school using the aforementioned equipment unless express

permission to the contrary has been secured. Analyses can be performed in any location.

Translation. The analysis of the stress ball must be done at school in our lab. The rest can be done at your

convenience, but the program must be transportable to school and runable there.

DUE DATE

Not later than 1200 – 11 October 2011 – Tuesday – No Extensions

SUBMISSION

TYPE

As described above. Single copies only - - - This time. No .pdf submission is required for this paper

GROUP SIZE Not more than 4 people. No gender ratio restrictions. Groups may be changed for subsequent labs.

http://www.hmvb.org/


EXPERIMENT 2 – SHM

SIMPLE PENDULUM

BASIC

REQUIREMENT

You are to investigate the effects that bob mass and the length of a

pendulum have on its period. This is to be done at various release angles and

the effect these release angles have on the pendulum’s motion and period

must be modelled.

ESSENTIAL

REPORT

INFORMATION

The differential equation for the motion of the pendulum must be derived

and the constants measured. For small values of theta, the DE can be

simplified using the small angle equation. You must, however, be prepared to

defend what range you consider a small angle and how this estimation affects

the overall precision of your work. You are also expected to empirically

model the effects of large values of theta on the period. Thus your final

expression will be something like Period(theta, Length) = Ideal

Period(length) + Period Perturbation (theta, length). CAUTION: Observe that

the square root of small g is essentially equal to Pi. Do not ignore this!

You are also expected to let your pendulum swing for an extended period

to determine the damping coefficient involved. You should predict what

value for this coefficient is expected due in part to air resistance and compare

it to what is measured.




EQUIPMENT

RESTRICTIONS

Pendulum should be set in a V to ensure motion in only two dimensions.

Any equipment in the school inventory not in current use by a teacher or the

typical items found in a student’s pencil case. Data collection must occur

within the school proper using the aforementioned equipment unless special

permission has been granted by the instructor.

DUE DATE Not later than 1200 – 24 October 2011 – Monday

SUBMISSION TYPE






distribution.

2. .pdf file sent by email. This email must be time tagged prior to the

established due date. This file will be archival. It should absolutely

identical to the paper submission.


will record a mark from the poorer of the two papers.



10 v. Bemmel

EXPERIMENT 3 – ELECTRICITY

DC CIRCUIT ANALYSIS

AC INTRODUCTION

BASIC

REQUIREMENT

You will construct two separate circuits and analyze each of them as

required below.

Circuit 1: Resistor network – Connect a bridge resistor network and

then predict using KCL and KVL the voltages and currents of each segment.

Then measure the same and verify these values. Account for any

discrepancies. Full use of uncertainty analysis is required. Caution: It helps to

choose resistors that have prime numbers or your linear system can be more

easily dependant making the theoretical solution harder to find. Also, do not

select resistors for the different branches of your circuit that differ by more

than 1 order of magnitude as this will make your uncertainty analysis

difficult.

Circuit 2: RC Circuit. You will construct a RC circuit and then observe

the charging and discharging curves. You will have to choose values for R

and C that can be read with the typical operational window of the I-books.

These can be determined by appropriate attention to the theory of this type of

electrical circuit.

HINT: In addition, the capacitor when nearing full charge will behave

like a very large resistance. These phenomena will cause your voltmeter to

give erroneous reading when in parallel to the capacitor. Part of your

methodology will be to devise a work around to this issue and explain it in

your paper

Circuit 3: Oscilloscope Familiarization You will connect the

oscilloscope to the AC signal generator and obtain a waveform. From this

you will measure the wave characteristics on the screen of the scope. The

frequency counter can then be used to verify the frequency. You are expected

to image the waveform from the screen of the scope. The TI-8x’s, I-books are

not permitted on this segment as you are expected to learn the use and

operation of an oscilloscope. You must use the analog scopes for this

exercise. The digital scope is NOT to be used for this segment unless express

permission from your instructor is given.

ESSENTIAL

REPORT

INFORMATION


However, it will conform to the page limit set forth below. The resistance of

the CBL will begin to affect the readings you get from the voltage probe. You

will have to sort this out.

You are expected to discuss the symmetry or lack thereof of the RC

profiles.

Your report must indicate if your research confirms or challenges the

accepted situation.




EQUIPMENT

RESTRICTIONS

You may use digital and / or analog voltmeters. You may also use

Netbooks / TI8x / CBL voltmeters if you wish and the equipment is available.


You must use Kirchoff’s work to solve these circuits. Thevenin and Norton

equivalents are not permitted in this analysis. You may however, show

how these theorems conform to the work you have done, but your analysis

cannot be justified exclusively by Norton or Thevenin Theorems.

DUE DATE Not later than 1200 – 16 November 2011 – Wednesday

SUBMISSION TYPE






distribution.





will mark the poorer of the two papers.



Note: There is only ONE unique solution to the KVL circuit in part 1. You have to be sure that the

equations you choose are not linearly dependant. This can be checked when you set up your matrix by taking

the determinant.

12 v. Bemmel

EXPERIMENT 4 – ELECTROMAGNETISM

AC CIRCUIT ANALYSIS

BASIC REQUIREMENTS

Circuit 1: RC Phase shifting You will reconstruct the series RC circuit that

was used during experiment #3. Measure whatever parameters you deem necessary

with whatever equipment the school can provide to measure the reactance of the

capacitor and the phase shift it generates between the current and the voltage

waveforms. Research the topic of Lissajous figures and measure them for this

circuit. Does the data from this observation compare well with other data collected

above. What is the common use of this technique? Choose your R and C values

carefully to encourage a sensible phase shift of current and voltage (You are

permitted to alter the parameters of both R, C and f to obtain a reasonable Lissajous

Figure. However, you are still expected to show what the phase shift would have

been with the components from your Lab 3 experiment. If the phase shift of these is

acceptable then fine otherwise predict and show that it is small and then choose new

components to complete this part of the experiment). Your theoretical knowledge

should guide you here. The values of these components have to be carefully

chosen to permit impedance matching. You should research this before

entering the lab. The results of this computation should also be included in your

analysis.

Circuit 2: CLR Circuit. Now connect a CLR circuit with components whose

impedance with match the output of the function generator and predict the natural

frequency of this circuit. (Show the reasoning here in your report please.) Make a

plot of frequency amplitude v. frequency and see if your resonance point is in fact

the natural frequency. Some analysis of your curve should be effected to obtain the

mathematically sound maxima here.

Circuit 3: Transformer Using the coils and magnetic cores provided by the

school make a rudimentary transformer. Starting with a low frequency of 20 Hz

increase the frequency of the input voltage until the output voltage drops off

considerably. It should be much higher. Why does this happen? Where does all the

energy go?

Circuit 4: Solenoid Using the hall effect probe and DC power source of a low

enough voltage to keep the current in the coil at a safe level (ie. 1.5 V) measure the

B field inside the solenoid and also along it longitudinal axis. Compare the values

you obtained with those predicted by the theory describing your circuit. Consider

using the Helmholtz coils for this

Extension: Energize a second solenoid whose B field is similar, but not

necessarily exactly the same as the first one. Place the second solenoid proximate to

the first one at an arbitrary angle well of the axis. Compute the theoretical B field in

R3 as it is distorted by the two solenoids. NOTE: Proper solutions to this

challenging aspect can earn up to 110% on this paper. However, papers that do

not meaningfully undertake this aspect will not receive a grade in excess of

90%.


ESSENTIAL

REPORT INFORMATION


However, it will conform to the page limit set forth below. The resistance of the

CBL will begin to affect the readings you get from the voltage probe. You will have

to sort this out.

The directional ability of the Hall effect probe is a problem. This is exacerbated

by the local magnetic fields in the room. Part of the challenge is to sort out this

problem. To complete the extension described above you would have to carefully

locate the probe’s tip around the solenoid in 3D. This apparatus would be your own

design. (Course work primarily deals with the fields along the longitudinal axis of

the solenoid)

Your report must indicate if your research confirms or challenges the accepted

situation. Consider sourcing the Biot-Savart Primer on my web page.

PAGE LIMIT If attempting the bonus you can submit 5 pages + 1 page indicating the duties

performed by each member.

If not attempting the bonus then the page limit is the usual 4 pages.

EQUIPMENT

RESTRICTIONS

Oscilloscopes must be used for the AC section of this work. The remainder can

be effected using any equipment in the school. The positioning tool that might be

used for the extension cannot be professional in origin or expensive and thus readily

obtainable or constructed by the team members from everyday materials.

DUE DATE Not later than 1200 – 12 December 2011 - Monday

(NO extension will be granted through the holidays because of the project)

SUBMISSION TYPE

1. Paper. Double-sided. Attached should be the signature page and the,

include the formal report marking rubric found in this document. On it

you need to indicate the aspects of the lab to which each member

contributed and bears the signatures of all group members as an indication

of agreement with this workload distribution.




NOTE: if there are differences between the paper and .pdf submissions, I will

mark the poorer of the two papers.

GROUP SIZE Not more than 4 people. No gender ratio restrictions.

Note: This is a challenging experiment. It is quite possible that the theoretical material will not be covered in

time. This is a common problem at university and so you will have to prepare for this carefully and manage your time

with great care.

14 v. Bemmel

EXPERIMENT 5 – INTERFERENCE AND QUANTUM MECHANICS

DIFFRACTION, BLACK BODIES AND

QUANTUM MECHANICS

BASIC

REQUIREMENTS

You are to investigate the wave properties of light and then given the results of more

professional experiments, attempt to inference aspects of quantum mechanics.

Experiment 1: You are to arrange a single slit diffraction pattern produced by a red laser.

Please do not bring in ‘green’ laser pointers as they are very intense. From this pattern you will

take a calibrated digital image. This image will have its intensity profile analyzed by software

created by your lab group. You will analyze this profile for it shape and intensity distribution

and reconcile this will the theory presented in class.

Experiment 2: You will arrange a prism and a light box to obtain a white light spectrum

(rainbow). This will be imaged in a calibrated manner and you can use your profiling program

to determine the intensity of the light as a function of colour and deflection angle in this

spectrum. Due caution is required here. You will have to investigate the spectral response of

the chip in your camera. Additionally you will research the typical temperature of the electric

bulb in the ray box and recreate the black body curve produced by the light. This then is to be

reconciled with the theoretical blackbody curve produced by a light bulb filament of the

advertised temperature. You are permitted to obtain the temperature by direct measure, but

your method must first be approved by Mr. van Bemmel for student and equipment safety

considerations. Your analysis should also include a prediction of the bulb temperature using

Wein’s Law and a reconciliation of this with the sourced (or directly measured) temperature of

the bulb.

It can be shown in laboratories with more extensive equipment suites, that (a) the emission

of light at extremely low intensities becomes chaotic and not continuous as wave propagation

would suggest. The energy of these bundles of energy is proportional to colour not intensity

which is irreconcilable with wave theory. (b) That the single slit diffraction pattern can be

recreated over a long period of time, with single photon emission. This seems very confusing

for the diffraction pattern is clearly a wave effect, but if each photon is emitted singly then

what is there to interfere with?

Analysis 3: Given the above data and the theoretical primer couple with your research use

your results from the single slit pattern to derive an expression for (a) the Uncertainty

Principle and (b) the value of Planck’s Constant (h).

ESSENTIAL

REPORT

INFORMATION

Your report will follow all the constraints given in the course package. However, it will

conform to the page limit set forth below. Your report must indicate if your research confirms

or challenges the accepted situation.

You will need to carefully research the properties of some of your equipment. It is good

advice that this get undertaken well in advance of this experiment for manufacturers may take

time getting back to you.

PAGE LIMIT 4 pages + 1 page with the marking rubric on one side and a signature page on the reverse

indicating the duties performed by each member. Please print them on BOTH sides of the

paper.

EQUIPMENT

RESTRICTIONS

Digital cameras are permitted, along with pocket lasers as we have only two at the school.

Mounting the pocket laser is your problem. If you use a pocket laser you must not advertise

their use outside the classroom. The spectrum of a pocket laser might be slightly different from

the gas (HeNe) lasers in the lab, check it out.

All data must be collected prior to us leaving for Xmas holidays on 23 Dec. No lab time

will be permitted in January.

DUE DATE Not later than 1200 – 20 January 2012 - Friday


SUBMISSION

TYPE

1. Paper. Double-sided. Attached should be the signature page and the, include the

formal report marking rubric found in this document. On it you need to indicate the

aspects of the lab to which each member contributed and bears the signatures of all

group members as an indication of agreement with this workload distribution.

2. .pdf file sent by email. This email must be time tagged prior to the established due

date. This file will be archival. It should absolutely identical to the paper submission.

NOTE: if there are differences between the paper and .pdf submissions, I will mark the

poorer of the two papers.

GROUP SIZE Not more than 4 people. No gender ratio restrictions.

16 v. Bemmel

3 YOUR PROJECT

Item Topic Due Date

1 Prospectus 05 Dec 11 (Mon)

2 Demonstration 13 Jan 12 (Fri)

(I did not plan this! )


NON INVASIVE DC AMMETER

ITEM PARTICULARS

BASIC

REQUIREMENTS

You are required to construct a device that conforms to the following.

You are to construct a device that is able to measure at least a 1A steady DC

current without being connected directly to the circuit. Your ‘detector’ can touch the

outside of the insulated wires, but is not permitted to directly connect itself to the

circuit. Your detector should be portable. The sensor should have lead of at least 60

cm so that it can reach isolated aspects of a circuit.

The display should be a LED type digital readout and not a simple mechanical

gauge (such as a voltmeter). This display should have three significant digits. A

selector can be used to obtain the readings. This readout should not an ‘LCD type kit”,

but you are expected to wire the connections to each display digit yourself.

Since the current is stable your readings should also be stable and mark will be

given for your ability to isolate your device from ambient radio interference as

required. Your performance mark will in part be derived by the accuracy of your

device compared to a professional ammeter established in the circuit.

Additional Marks will be given to devices that can (accurately) sense currents

lower than 1A

Originality is stressed in the design of this project. If your work is found to

conform in a major way to an existing design you marks for this aspect will not be as

impressive. It is your responsibility to STRESS the original components of your

design and to cite all sources you consulted.

18 v. Bemmel

PROSPECTUS

DUE 05 DEC 11

(MONDAY)

Engineers design things and technicians build them. Therefore, it will be your

burden to design your project in detail prior to constructing it. Your group will

be held accountable for not only the quality and originality of your design, but also

for how well it conforms to your final project. Your outline will contain the

following aspects

1. A description of the design of the device with explanations of why this

design is optimal and conforms to the laws of physics etc. A proper

blueprint type diagram showing the mechanical dimensions and structure of

the device. You must give details of where you sourced your ideas. I will

check this. I expect some creativity and originality here not a simple copy

of an Internet project.

2. A complete wiring diagram of the device using established techniques and

symbols

3. An overall set of procedures to construct and test this device. Tolerances

and expected performances during construction should be included.

4. A production schedule and a system to monitor same that can be produced

upon demand.

5. A budget whose total cannot exceed $150 CDN (Fair market value charged

for any gifts of material). This includes prototypes and mistakes.

6. A pamphlet created in a quasi-professional manner that would accompany

this project that would be used for marketing purposes. Do be careful about

the claims you make, you will be held accountable!

You must cite any sources that you have consulted where the design of this

device is not your own. Failing to do so will result in forfeit of the grade for that

design.

ESSENTIAL

FINAL REPORT

INFORMATION

DUE ON DEMO DAY IN

JANUARY

Your final report to be submitted on demonstration day must include.

1. An operations manual

2. A promotional pamphlet describing your device for marketing purposes

3. All testing data presented in an intelligent format

4. Explanations of where the final product exceeds the specifications (any of

them) in the prospectus and why this had to occur why they could not have

been anticipated.

PAGE LIMIT

Prospectus: None

Final Report: None

However, you will be docked marks if these reports contain a lot of “padding”.


EQUIPMENT

RESTRICTIONS

You may use basic stock materials, such as plywood, structural wood, dowel or

metal rods etc. for the mechanical aspects, however the expectation is that you

fabricate the device as much as possible.

The electronic aspect restricts you only in the prohibition of interfacing with a

computer, using microcontrollers and other small computers such as PLA’s.

Integrated Circuits are permitted, but the general rule would be that they have a

single purpose such as: counters, operational amplitifers, logic gates (AND, NOR

etc) LED digit display drivers, LED 7 segment digits, crystal oscillators, 555 type

oscillators, voltage regulators, analog to digital converters and such like.

Your display device MUST be of your own design/construction. Hooking it up to

a simple voltmeter would be an unsatisfactory choice. This would also apply to

buying some type of device box that connects to a computer. You are expected to do

this the hard way.

You are NOT permitted to use pressure sensing devices such as load cells or

piezoelectric devices. Nor are strain gauges permitted.

You may NOT construct your own power supply for this unit. Any aspects

of this project that use voltages greater than 12V must be CSA approved.

You have a budget of $150.00 CDN total for this project This includes any

“donations”. The limit is “fair market value” for the items you use in your project

You are strongly discouraged from attempting to use the school shops to

build this device.

They are understaffed and your safety is an insurmountable issue. The

construction of this device will largely have to occur outside of the building. If you

have intractable problems with this aspect come and see me.

If you are unsure about the legality of a given part ASK ME FIRST.

DUE DATES

Project Prospectus: 1200 – 05 December 11 – Monday

Project demo and report: 0900 - 13 January 11 – Friday. In class – or before

SUBMISSION TYPE

1. Paper. Double-sided. Attached should be the signature page and the, include the formal

report marking rubric found in this document. On it you need to indicate the aspects of the

lab to which each member contributed and bears the signatures of all group members as an

indication of agreement with this workload distribution.

2. .pdf file sent by email. This email must be time tagged prior to the established due date.

This file will be archival. It should absolutely identical to the paper submission.

NOTE: if there are differences between the paper and .pdf submissions, I will mark the poorer of

the two papers.

GROUP SIZE

4 people. No gender ratio restrictions.

20 v. Bemmel

DIGITAL DC AMMETER – CLASS 1112

Student1 : _____________________ Student2 : _____________________

Student3 : _____________________ Student4 : _____________________

FORMAL REPORT MARKING RUBRIC – PROJECT

ASPECT DESCRIPTION MARKS

PERFORMANCE

If the device works DURING the demo you will get full marks here. If you

can document (i.e. video or some other evidence) that it did work, but

something bad happened on demonstration day then you will earn at least 8

marks. Beyond that, it will be the teacher’s judgement as to how close you were

to getting it operational. By working the device should at least give readings that

are in the same direction as the (in)decrease of the load and proportional to the

stimulus

/10

DEVICE

ACCURACY

If you have substantially begun your data display system, but it is not

operational, you cannot earn more than 3 marks here. If you have not begun

constructing this and have only the design then you will receive zero for this

section.

For the rest of the marks you system would have to have some form of

calibration in that when it displays some level this has physical meaning and

that you have modelled and can be used to infer the mass. Hex/Octal readouts

are allowed, but will not receive the highest marks.

Bonus marks will be offered to projects which can sense currents

substantially lower than 1A. This will not exceed 10% and is usually much

lower. However, I do like being impressed!

/10

CONFORMITY OF

PROSPECTUS

Specifically how well did the finished device correspond to that specified in

the prospectus? This goes right down to dimensions and electronic part

specifications etc. /20

FORM OF

PROSPECTUS

1. All form rules enforced here (Operating Manual format)

2. Is the production schedule reasonable?

3. Did this group produce an up to date production status when asked? /10

FORM – FINAL

DOCUMENTATION

1. How professional is the Operating Manual?

2. How professional is the Marketing Pamphlet?

3. How complete is the testing and how well is this information presented?

4. How accurate is the budget and did it fall under the limit?

/20

QUALITY OF

CONSTRUCTION

1. Was the device constructed to perform for some time or is it some kind

of lash up?

2. Was there effort dedicated to make the device appealing, NOT

necessarily by coloration,. But in the quality of its manufacture etc.

/10

DESIGN How original was your design. How properly did it use the available laws of

physics to effect its aim. How efficient is this unit supposed to be? /20

TOTAL GRADE

Utterly superb projects may receive grades in excess of 100%, but only when the

resulting performance greatly exceeds the above standards. No mark will exceed 110%.

You are reminded that this is an AP part of the course and any marks here will be

adjusted.

%

This project will reward planning and originality along with performance. It is a challenge and I suggest

that you get right at it. Good luck!


Lab: 1 2 3 4 Submit signature page on reverse

Student1 : _____________________ Student2 : _____________________

Student3 : _____________________ Student4 : _____________________

CATEGORY DESCRIPTION MARKS

SPRING CONSTANT /10

SAMPLE PROBLEMS

1D 2D 2DM /10

PROGRAM LISTING /20

PROGRAM

DOCUMENTATION /10

1D DEMO RESULT /10

2D DEMO RESULT /10

2D MOVING

TARGET RESULT /20

BLOCK DIAGRAM /10

TOTAL /100

2D COLLISION SIMULATION MARKING RUBRIC – APC1112

ap physics c lab manual - hmvb.orgap physics c 1112 - lab manual 3 late submissions are not...

Documents