Fizik I - Mekanik ZCT 101/4

baconossifiedΜηχανική

29 Οκτ 2013 (πριν από 3 χρόνια και 7 μήνες)

111 εμφανίσεις

Fizik I
-

Mekanik

ZCT 101/4

Lecturer in charge:


Yoon Tiem Leong (
袁添亮
)



Email:
tlyoon@usm.my



Room 115, School of Physics, USM, Tel:
653 3674


www.geocities.com/tlyoon


Or


www.fizik.usm.my/tlyoon/

teaching/

modernphysics.htm




Course Description


Physic after 1900


special theory of relativity,


particle nature of
light and wave nature of matter, introductory
quantum theory of atoms and introductory
quantum mechanics.




Time Planning

Contact hours


Maximum contact hours =


(2

x
7)
weeks

x

(3
x
50) mins/week = 35
hours (ideally, but practically the number
of contact hours could be lesser due to
holidays)




Out of the 42 classes scheduled, 4 will be
allocated for tutorials


Estimated lecture hours


32



Topics to be covered


-
1

The program of physics



1 lecture


13 Nov 03 (Thu)



0

Special theory of Relativity



12
(or 10)
lectures

14 Nov 03 (Frid)
-




1

Some preliminary wave physics


2 lectures



2

Particle properties of radiation


5 lectures


3

Wave properties of particles



3 lectures


4

Introductory quantum mechanics



4 lectures



5

Atomic models



5 lectures



Total


=


32
(30)
lectures

(flexi)


Problem Sets

(tutorial): 4 sets, download
them from the web






Exams
:

Two tests
,
x
-
hour final exam (yet
to confirm)


Grading



Grading will be weighted: Midterm tests + 1
computer
-
based test, both contribute 30%,
while final exam will contribute 70% to the
total weight.

Textbooks


1)
Kenneth Kane, Modern Physics, John. Wiley &
Sons,


2nd edition (August 1995) (required)


2) Modern Physics (Saunders Golden Sunburst Series)
International edition, by Raymond A. Serway,
Clement J. Moses, Curt A. Moyer
(required)

(alternatively, volume two, physics for
scientists and engineers by Raymond A. Serway, third
edition, by the same publisher)


3) Introduction to the Structure of Matter: A Course
in Modern Physics, by John J. Brehm (Author),
William J. Mullin, John Wiley & Sons; (January 1989)
(advanced)

4) Elementary Modern Physics, by
Richard T. Widner and Robert L. Sells,
Allyn and Bacon Inc., third edition

5) Concepts of Modern Physics, Arthur
Beiser, McGraw
-
Hill; 6th edition

6) Physics, Cutnell and Johnson, John
Wiley & Sons (International Edition), 6th
edition (simple)

7
) Quantum Physics of Atoms,
Molecules, Solids, Nuclei, and Particles
by Robert Eisberg, Robert Resnick, John
Wiley & Sons; 2nd edition 7)


8)
Introduction to special relativity, by
Robert Resnick, John Wiley & sons

Course requirement (informal):



The students must be familiar with basic

knowledge in some necessary

mathematical tools such as calculus,

differential equations, Taylor and/or

binomial expansion





The students must have already equipped

with fundamental knowledge in Newtonian

mechanics





English

MAILING LIST


Everyone must send an email to


tlyoon@usm.my

so that I could maintain a list
of contact




Type your name in the “Subject”



Those who fail to do so have to bear the
responsibility if any information pertaining to
the lectures, e.g extra classes, change of venue
and timetable etc., fail to reach him/her


Downloads


http://www.geocities.com/tl
yoon/calander.htm


Password for lecture notes:



011103

(the date AB took over
as PM)



Tutorial sets



Consultation hours




-


anytime (but please call first)




General Comments




intellectually intriguing and

somewhat counter
-
intuitive
, must

prepare to think logically like

Einstein.



Learn the methodology of doing

‘real’ physics


No ‘hafalan’ will work here


understanding is absolutely mandatory





Interactive learning is strongly encouraged


emailing, Q&A on class, in private, by
phone, chat room on the web etc.


Your feedback to improve the quality of
the lectures is welcomed


Must read text


lecture note is not enough


1
st

lecture: The program of
Physics


The program of physics is to devise
concepts and laws that can help
understand the physical universe.




A law in physics is a
precise
mathematical
statement

of a relation
that has been found by repeated
experiment to hold among physical
quantities and that reflects
persistent regularities in the
behaviour of the physical world.

"good" physical laws


generality, simplicity, precision
, fit
experimental observations (e.g.
Newtonian Physics)


New physics supplants old physics
beyond the domain of validity of old
physics (e.g. Special relativity vs.
Newtonian Physics)


The limits of physical theories
: classical
physics,
quantum physics, special
theory of relativity
, relativistic quantum
mechanics (QFT), general theory of
relativity, statistical physics


Quantum gravity


Classical physics = physics before 1900


thermodynamics, EM, classical mechanics


modern physics
=

the physics of the
twentieth century (after 1900)



This course is about Quantum physics
-

atomic
and nuclear structure, and


special theory of relativity


speed approaching
that of light



failure of classical physics gives rise to modern
physics

The 'architects' of modern physics

From specific to general


Usually we start from some known but specific
theory and try to generalise it


a new (general) theory will yield the old
(restricted) theory as a special approximation


E.g. when backtracking to your younger age,
the difficult math you learnt in the University
must reduce to that of simple arithmetic
knowledge that you learnt in primary school


E.g.
the relativity and quantum theories must
yield classical physics when applied to large
-
scale objects moving at speeds much lower than
the speed of light

The correspondence principle


Extrapolation from known physics to more
general physics requires some “criteria”
that must be fulfilled by the `new theory’



Any new theory in physics, whatever its
character or details, must reduce to the well
established classical theory to which it
corresponds when it is applied under the
circumstances in which the less general
theory is known to hold
.

Example


Special case: T
he
parabola
motion of
projectile
on Earth is a special
case of the more general case of
elliptic motion of satellite around
the Earth


General case: The mathematical
description of satellite has to
reduce to parabolic motion of
projectile on Earth surface when the
length scale reduces from that of
Earth size (~6000km) to that of a
short distance (say, ~ 100 m)

Another example


Ray optics and wave optics, b
oth
describing the
propagation of light


Geometrical optics:
only rectilinear propagation,
reflection, refraction
,
valid only when
l

/
d

-
> 0



wave (physical) optics
-

more general (diffraction,
interference, also rectilinear propagation)
,
more
comprehensive, valid up to
l



d

Limit (wave optics)

=


ray optics


l

/
d



0

(no wave phenomena)


YOU MIGHT BE A PHYSICS MAJOR...


if you have no life
-

and you can PROVE it
mathematically.


if you enjoy pain.


if you know vector calculus but you can't remember
how to do long division.


if you chuckle whenever anyone says 'centrifugal
force.'

if you've actually used every single function on your
scientific calculator.













if you always do homework on Friday and Saturday
nights.

if you know how to integrate a chicken and can take
the derivative of water.

if you hesitate to look at something because you don't
want to break down its wave function.

if you have a pet named after a scientist.

if you laugh at jokes about mathematicians.

if the Humane society has you arrested because you
actually performed the Schrodinger's Cat experiment.


















if you avoid doing anything because you don't want to
contribute to the eventual heat
-
death of the universe.


if you consider ANY non
-
science course 'easy.'


if the 'fun' centre of your brain has deteriorated from lack of
use.

if you'll assume that a 'horse' is a 'sphere' in order to make the
math easier.


if you understood more than five of these indicators.


if you make a hard copy of this list, and post it on your door.

If these indicators apply to you, there is good reason to suspect
that you might be classified as a physics major. I hope this
clears up any confusion