Welcome to Physics 153 Lecture section 003

Instructor: Dr Andrzej Kotlicki

How are we trying to help you to learn in this course?

• During the lectures we will discuss the material, which you should already partly absorb during the pre-reading ! I will ask a lot of questions and try to adjust the lectures to your needs.

• During the tutorials we will lead you through problem solving and help you understand the best approach. We will continuously test your acquired skills with the tutorial tests and MasteringPhysics software. There will be 10 sets of problems with due dates!

Notice: Tutorials start next week (Sept 14th)

What we expect you to know?

• Physics 11 and 12.• Basic algebra, geometry and trigonometry• Some calculusLook at the math formulas in the textbook

(Appendix B) Math simulations:Equation GrapherCalculus Grapher

stronger?

From: What all instructors should know about learning by Carl Wieman

Recent research-Brain develops much like muscle- it requires strenuous extended use to develop!(Classroom, Cog. Psych., & Brain Imaging)

F=ma

Smarter?

From: What all instructors should know about learning by Carl Wieman

How to maximize your chances of success?

• Work with your friends – form study groups. It is very useful to hear different approaches to the problem!

• Work steadily during the term• Do not try to memorize – understand and

learn to use the material. • Formula sheets will be allowed during the

midterms and exams.

The required textbook for this course isUniversity Physics with Modern Physics, 12th edition

ISBN 9780132126335

• Custom University Physics Vol A• Custom University Physics Vol B• Mastering Physics

Here’s how to get started:

To access MasteringPhysics you will need:• A Student Access Code

– Bundled with a new textbook or available for purchase online at http://www.masteringphysics.com

• A valid email address• A “Course ID” :MPMCCUTCHEON00178

Phys 153An i>clicker remote is required for this course. You should have it for the chemistry course or can purchase it through the bookstore.

How will we use the clicker?I pose questions on the screen during lecture.

You answer using your i>clicker remote.

Class results are tallied.

I display a graph with the class results on the screen.

We discuss the questions and answers.

You get points for participating!

Registering your i>clicker1. Go to your WebCT Vista Course website.

2. Click on theRegistration icon

3. Enter your remote ID.

4. Click “register.”

REGISTER AT www.vista.ubc.ca

E-mails

I am sorry not being able to explain the concepts or problems by e-mail. There is just no time for it in such a big class and few sentences on an e-mail can not replace the textbooks or face to face explanations.

But I will be happy to answer questions during the office hours: Tuesday 10-11 or by appointment.

Marking• Midterm 1 10 marks• Midterm 2 10 marks• Assignments 12 marks

» Mastering Physics 4» Clickers 4» Tutorial problems 4

• Dec. exam 70 marks.Total term 1 102Will be normalized with term 2 marks.

Academic Conduct• Midterms and exams: no electronic devices with

communication abilities. No collaboration or bringing in tutors!

• PRS – we encourage discussions when appropriate. Sometimes we would like to know individual opinions

• No 2 clickers per person! Please read relevant pages in the Calendar: http://www.students.ubc.ca/calendar/index.cfm?tree=3,54,111,959for general rules and:http://www.students.ubc.ca/calendar/index.cfm?tree=3,41,90,0#198for exam specific regulations!

Temperature and Heat

• Chapter 17 of textbook; • Please read the whole chapter before next

lecture!

Temperature and Heat

Goals:• You should be able to:

– recognize the conditions for thermal equilibrium

– know temperature scales and be able to covert temperatures

– know the principles of temperature measurements and different kinds of thermometers

Measuring temperatureThere are many ways to measure temperature, but the two devices mentioned below take advantage of a gas or liquid sample which expands if heat is added and contracts if heat is removed.

– A small container of liquid will see the liquid increase in volume as temperatures rise. Mercury was chosen “early on” because it’s so dense, a small volume can record large temperature ranges.

– A cylinder of gas will show pressure rise if volume is kept constant.

Q17.1

The illustration shows a thermometer that uses a column of liquid (usually mercury or ethanol) to measure air temperature. In thermal equilibrium, this thermometer measures the temperature of

A. the column of liquid.

B. the glass that encloses the liquid.

C. the air outside the thermometer.

D. both A. and B.

E. all of A., B., and C.

The zeroth law of thermodynamics– Simply stated? “Heat will always travel from a hot reservoir to

a cold one without outside energy forcing an unnatural transfer.”

Liquid Thermometer: Why there is a container of liquid and a

very narrow tube above?

ThermometersBimetal

IR (infrared)Digital

Liquid and gas thermometers were shown before

Which of these does not have to be in thermal equilibrium with the object the

temperature of which we measure?

A. GasB. LiquidC. DigitalD. InfraredE. Bimetal