1 / 39

PX110: The Level 1 Laboratory

2013/14. PX110: The Level 1 Laboratory. Dr. Tom Hase My room is: MAS 4.02 My e-mail is : t.p.a.hase@warwick.ac.uk More information: Module web-page. School vs. University. Independent Learning Not just about ‘doing an experiment’ Not about getting the right answer

kioshi
Download Presentation

PX110: The Level 1 Laboratory

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 2013/14 PX110: The Level 1 Laboratory Dr. Tom Hase My room is: MAS 4.02 My e-mail is: t.p.a.hase@warwick.ac.uk More information: Module web-page

  2. School vs. University • Independent Learning • Not just about ‘doing an experiment’ • Not about getting the right answer • You do the work • You do real error analysis • You plot graphs on the computer and use data analysis tools • Work under time pressure • Whole different way of writing and presenting data

  3. Equal Opportunities • Equal Opportunities isn’t about treating everyone the same. • It is about recognising that people have different needs and that some people are more disadvantaged than others. • Please be culturally aware in your in your interactions with peers and staff.

  4. Course Book Will be useful for your practical work in all future years • Details how to: • Manipulate and propagate errors • Plot graphs • Describes underlying concepts • £19.95 (paperback) • Bookshop • Amazon (discount) • + others

  5. Course Book • University bookshop or Amazon Everett Ramer - University of Pittsburgh I recently reviewed 10 current books on data and error analysis for undergraduate physics majors, and recommend this one by Hughes and Hase. (review on amazon.com) Prof. D. Hand - Imperial College, past president of the Royal Statistical Society This book focuses squarely on the problems of moving from data to theory. It drags the treatment of uncertainties for practical physics courses into the twenty-first century….. Overall, however, this is a rather beautiful little book. (Reviewed in: International Statistical Review 79 (2), 272–301 (2011))

  6. Nobel Laureate, Richard Feynman: “The principle of science, the definition, almost, is the following: The test of all knowledge is experiment. Experiment is the sole judge of scientific “truth””.* Experimental work is vital, even if you think you are a theoretical physicist! *Lectures on Physics, Vol. 1, Page 1 (1963)

  7. Experiments provide: • Empirical ‘laws’: • Broad mathematical forms • (Is a relation linear, quadratic, exponential etc.) Consider an x-ray absorption experiment:

  8. Experiments provide: • 1. Empirical ‘laws’: • Broad mathematical forms • (Is a relation linear, quadratic, exponential etc.) X-rays are absorbed by materials: Metal Bone Flesh Density

  9. X-ray Absorption

  10. Experiments provide: • Tests of competing hypotheses • Whose law’s of motion are correct – • Aristotle • Galileo/ Newton • Einstein’s Special Relativity? • Allow assumptions and approximations to be tested.

  11. Hypothesis TestingAristotle vs. Galileo

  12. Aristotle's Laws of Motion Aristotle's believed that all bodies tended to return to rest and needed a mover to keep them in motion. He held that everything moved in a straight line until something intervened to stop it and that the object then fell to earth. http:\\abyss.uoregon.edu

  13. Galileo’s law of Motion • Mechanics Course: • Laws of linear motion give rise to Projectile motion

  14. Experiment Aristotle Use experiment to determine who is correct... Galileo

  15. The role of Experiments • Experiments provide empirical laws and test hypotheses • Experiments may, or may not be ‘correct’ • Precise and careful measurements are vital. • It is not possible to compare experimental data with a model unless there is an estimate of the uncertainty in the data. • Need to quantify the uncertainties – next week!

  16. What are the Aims of the module? • Get you thinking about solving practical problems • Introduce you to experimental techniques and equipment • Show you that good experimental work requires care and patience • Show you how to report your work properly • Determine “Experimental Uncertainty”

  17. What is the role of the module? • To develop a set of key skills on which all your future laboratory work is based • Practice those skills • The experiments are NOT tied directly to lecture courses

  18. The Structure of Module PX110 Participation Sport • 8 lectures 1 Intro (Today)3 Science Talks 1 Error Analysis1 Report writing 1 Use of Origin 1 error lecture 1 Report writing • 15 laboratory sessions + 3 Marked Reports Term 2 Term 1

  19. How are the Labs Organised? • Labs run on Thursday and Fridays • Group lists can be found on the module web-page • One session per week • you work in pairs • Safety Introduction (week 2 10th/11th Oct.) • 1 Error Workshop (week 3 17th/18th Oct.) • 6 Lab Skill Sessions in Term 1 (weeks 4-9) • 8 sessions Epiphany Term (weeks 16-23)

  20. When do they start? • Next Week! • Introduction to the Lab and Safety training • Thursday and Friday groups 10-12 ONLY • Week 3 – 17th or 18th October • Error Workshop • Thursday and Friday groups - 14:00 – 16:00 ONLY • Thereafter as per timetable • Sessions 10:00 – 16:00 [Lunch 12.30-13.30] • Check schedule for more information

  21. Key Personnel in Labs • Laboratory technicians • Sue Burrows and Eric Woodward • PhD Student Demonstrators • Provide help with the experiments • They will NOT do the experiments for you • Academic Staff • General discussions and report marking

  22. Demonstrators • Each experiment has at least one PhD demonstrator: • they are there to help you • they will not do the experiment for you • they will lead class discussions • they grade your lab books in the session

  23. Lab scripts • Describes each experiment • Preparatory tasks • some theory and background • experimental procedure • some concluding questions and comments • handed out in week 3 in pigeon holes • also available on Module page

  24. What you have to do! • Read script and do preparatory task before session • Do the experiment - making notes in your LAB WORK-BOOK • BUY a good quality book • Hard-back A4 ruled book • Your lab work-book will be marked in the session • These marks contribute 50% of the module mark.

  25. Your Lab Work-Book • records what you do in the lab • your measurements • your results • their units • your graphs • any special procedures • make it neat, but don't copy it out at home • get it marked! Marks will be awarded for the quality of your lab-book.

  26. Your Lab Work-Book Please read online, Information on how to keep a Laboratory Note-Book

  27. What do I bring to each session? • for each session you need • Laboratory notebook • Measurements and their uncertainties book • scientific calculator • lab script • pen, pencil and a ruler

  28. Assessment • Term 1: Experimental Skills and Data Analysis • lab books graded in session (summative) • 1 extended report (10%) • One to one feedback from markers • Term 2: Full Experiments • lab books graded in session (summative) • 2 extended reports (15%, 25%) • Continuous assessment - 50% • Reports - 50%

  29. Deadlines • NOT FLEXIBILE • Marks will be reduced by 5% per day late. • Term 1 • 1st report to be handed in to laboratory technicians on Wednesday 4thDecember by 15:00 • Term 2 • Report deadlines: • Wednesday 12th February, 15:00 • Friday 14thMarch, 15:00 or on-line by 26th March 15:01 counts as 1 day late – so get it in early!

  30. Progression • You MUST pass the first year lab to progress to the second year of your study • You cannot ‘re-take’ the lab-module in August: • If you get <40% you will be required to leave the university.

  31. Expectations

  32. Feedback Feedback will be given in real-time and when your work is marked. • Oral feedback • On the marking pro-forma • Written on the reports It is your responsibility to act on this information. Do not take the feedback too literally – often the real feedback relates to the context in which it is given.

  33. Experimental activities can be hazardous. SAFETY We have reduced hazards to a minimum. Assume an activity is unsafe until you have verified that it is not. If in doubt about any activity ask a demonstrator or member of staff for help.

  34. General Safety • Experiments each have different safety information. Use the lab-script and familiarise yourself with any potential hazards. • Hazards are more to do with being aware of your activity and its impact on yourself and others (don’t run, eat or drink in labs) • Do not arrive in the laboratory under the influence of alcohol or drugs – you will be asked to leave and be reported.

  35. Lab Safety Test • You MUST do the on-line safety training and accompanying quiz before you can enter the laboratories to do experiments. • You must get 90% in the test to pass! https://perception.warwick.ac.uk (available from Monday)

  36. Ionising Radiation Test • The x-ray safety training program must also be completed before term 2: • https://perception.warwick.ac.uk • Available from Monday – please do it ASAP.

  37. What to do in the event of Fire • Leave immediately • do not use the lift • nearest fire escape is marked • assemble in the car park

  38. Illness If you are ill and cannot make the laboratory session please make sure that you use the form on the module web-page and let us know. If serious get a doctor’s note Illness does not mean I have a hangover

More Related