introductory session 2019 › ~part2 › online › phyc... · 2) no drinks or food in the lab....
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Introductory session 2019
LABORATORY SAFETY
1) You must wear closed toe shoes (you cannot be in lab without them).
2) No drinks or food in the lab.
Drinks can be left in the hallway and you can step out there to drink
3) Do not try to fix faulty equipment.
Don’t try to fix anything that looks broken. Tell your demonstrator!
4) Make sure equipment is turned off at the end of the lab.
4) In case of fire:
- Leave everything and calmly leave building. Go to Redmond Barry lawn
- Obey warden instructions (yellow hats)
The importance of experiments...
1)Experiments are not intended to “help” with your theory subjects.
- but you can often gain additional insight by completing these labs.
2)Experimental techniques stand alone as important skills
- practical skills, learning patience, safety, teamwork, keeping a log book etc
3)Even the best theorists need to have an appreciation of experimental physics.
- Theories are tested (and given meaning) by experimenting.
4)Computational physics is also very important.
Course structure
• Three blocks of four weeks.
• Computational labs are in order.
Experimental block A Experimental block B Computational block
Atom optics Electron spin resonance 1 – week 1 (pi)
Electrical circuits Radiation detection 2 – week 2 (n-body)
The Raman effect Fundamental constants 3 – week 3 (numerics)
Holography Fourier transformations 4 – week 4 (o.d.e)
• Timetable:
-6 hours, 3 on an afternoon, 3 the next morning.
- Starting Monday, Tuesday and Wednesday
- 2pm-5pm, 10am-1pm
Timetables• Available on the PHYC20013 wiki:
(http://secondyearlabs.ph.unimelb.edu.au/)
• Check your name and which lab you are taking.
• Don’t turn up to other lab times (check with me
first).
Absences, leaving early...
• If you know you will or did miss a lab, please EMAIL ME:
• If you tell me ahead of time, we can more easily re-arrange.
• Please provide a medical certificate and we can arrange another
time for you.
Safety rules for specific equipment
LASER SAFETY RADIATION SAFETY
Don’t look at them or put head in laser path! Only take out the sources when you need to
Make sure you remove any reflective jewellery. Keep them shielded as much as possible!
Wear correct safety goggles when appropriate Keep as far away as possible
Don’t shine lasers at other people! Wash your hands before drinking/bathroom/leaving.
Keep them shielded as much as possible! Account for all sources at end of both sessions.
ASSESSMENT
Your log books
- You MUST have a log BOOK.
- It must be A4, no smaller. (Doesn’t have to the uni lab one…)
- Write your experimental reports directly in your book.
- Prelabs (including computational flowcharts) can be written on
separate blank paper but MUST be GLUED in to your book as soon as
possible.
- For EVERY lab, stick a PRELAB sheet in. This helps with marking
(and, perhaps more importantly, helps ensure all your work is seen).
- At the front of your book, stick a MARK TALLY SHEET.
- Books must NEVER leave the lab!
Experimental marking scheme:
Report 12 Performance 8
Aim and conclusion /2 Prelab preparation /4
Procedure detail (2) and theory (1) /3 Participation and cooperation /2
Comments on results /2 Initiative /2
Discussion (2) with questions (1) /3
Error analysis /2 Total 20
Structure of experimental reports
- Aim – 1-2 sentences (general vibe)
- Theory – as required to make sense
- Procedure – clear & simple
- Results – graphs + numerical results
- Questions – answer them so question is clear
- Analysis/discussion – analyse results, discuss
errors
- Conclusion – 1-2 sentences. Reply to aim. Note
any important results.
Pay attention to:
- Does your procedure have
enough detail?
- Are your figures and tables
properly labelled and clear?
- Did you use words to describe
what you’re trying to investigate?
- Did you summarise important
results before moving on?
- Did you discuss problems you
had?
- Did you perform error analysis?
- write as you go.
- Write while taking measurements and after discussions with
your partner/demonstrator.
- A nice sensible log for an incomplete lab is better than a
poor log of a rushed experiment.
- Do NOT copy paragraphs from notes. Write what you did
and observed during the experiment.
Computational marking scheme
Code 12 Performance 8
Executes without error /1 Prelabs - flowcharts /4
Function and variable names /1 Sections completed /2
Elegance /2 Performance /2
Functional and produces results /4
Comments /2
Logbook /2 Total 20
Computational assessment
- Submit the CODE (through LMS) and the FLOWCHARTS (in your book).
- Write clear code with good comments, rather than fast and messy code
without comments.
- If you get stuck, comment in your logbook explaining the problem and move
on to the next section.
- You can’t physically break anything when coding - don’t be afraid! Play
around with different techniques!
Demonstrators
• They are here to help you think scientifically, not to give you answers.
• These demonstrators have lots of experience in teaching and are also very
friendly. Don’t be scared!
• However.... each demonstrator is looking after multiple experiments and
students… so please be patient.
• Ask each demonstrator during the lab (but not at the beginning of class):
1) Any questions you had from prelabs.
2) Anything specific they want to see in your report/code.
Book submission
- Experimental
Give your book to your demonstrator BEFORE 1:00 pm.
At 1pm the demonstrators will leave.
- Computational
Submit your code on LMS and your logbook to demo
BEFORE 1:00 pm.
Problems with marks?
- If you have any problems with your marks (marker missed a
page, you think they marked too easily, etc…) talk to the
marker first and ask them about it.
- If you still think there’s a problem, come and talk to me (Colin)
and we can discuss it further.
- Check the part 2 wiki
http://secondyearlabs.ph.unimelb.edu.au/
- or e-mail me at
with ANY questions.
... Any questions?
Logging in to computers...
To log in:
Username is your University EMAIL, e.g.:
Password is your central university password, e.g.: **********
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