Foundations L1: Modern Physics



Typically this is the first time Physics will go strange on you! Up till now, what you've seen has been very much built with the physical intuition you get from just looking at the world around you. But all that hard won intuition is not going to help you here, where we extend into the unfamiliar world - the world of the very fast which is special relativity, and the world of the very small which is quantum mechanics. Its not that your physical intution is wrong - it works great for the slow and macroscopic. it just needs extending when we move to more extreme environments.

Lectures in Elvet Riverside: I will start my formal lecture material at 11:10 as most students have a lecture beforehand on the science site and are still arriving at 11:05.

Your learning is supported by an OFFICE HOUR 1-2pm Thursday every week in OC304 (IPPP small seminar room in the old Ogden Centre in the main Physics building). Just drop in, no need to book. Please first though try to understand concepts by yourself (go over the notes/video captures, read the book section, google it) or with your friends, or in tutorials.

The reading references are Young and Freedman (YF). You are expected to read the relevant chapter sections BEFORE the lecture. My lecture notes are linked below - these are intended (like the lectures themselves) to be a guide to your reading in Young and Freedman, rather than being a replacement for the book.


3rd TERM REVISION LECTURE AND DROP IN SESSIONS


The revision lecture is timetabled for Weds 1st May 12-1pm. I will also hold drop in sessions (no need to email in advance, just drop in!) on Thursday 2nd May 4-5pm and Friday 10th May 1-3pm in OC304 (IPPP small seminar room in the old Ogden Centre in the main Physics building)


Lectures
Lecture 1:
Newtonian Inertial frames
YF 37.1 [p1223-1226]
more on reference frames in Newtonian mechanics
or be more general with the maths
Lecture 2:
Time dilation
YF 37.2-3 [p1227-1233]
Lecture 3:
Length contraction
YF37.4 [p1233-1237]
self reading: YF 37.6 Doppler effect [p1241-1243]
Lecture 4:
Lorentz Transformations
YF37.5 [p1237-1241]
self reading: YF 37.6 Doppler effect [p1241-1243]
Lecture 5:
Relativisitic momentum and energy
YF37.7 [p1243-1246]
Lecture 6:
Relativisitic collisions
YF37.8 [p1246-1249]
self reading YF37.9 Newtonian mechanics and relativity [p1249-1251]
Lecture 7:
more collisions, plus (non-examinable) How to think about SR
spacetime diagrams
transformation of velocity video
Lecture 8:
waves as particles - photons
YF38.1-2 [p1261-1273]
Lecture 9:
wave particle duality for light
waves and particles
double slit with dim light
single photons
localising position of a wave
YF38.4 [p1273-1279]
Lecture 10:
Electron waves
YF39.1 [p1286-1292]
Lecture 11:
Bohr model
animation
YF39.2-3 [p1292-1307] plus 39.4 [p1307-1309]
Lecture 12:
More Bohr and blackbody
reflection animation
39.5-6 [p1310-1317]
Lecture 13:
Quantum mechanics
YF40.1 [p1328-1338]
Lecture 14:
1D schroedinger
YF40.1 [p1328-1338]
Lecture 15:
particle in a box 1
wavefunctions and probabilities for infinite potential well
YF40.2 [p1338-1343]
Lecture 16:
compare to finite potential
finite/infinite potential animation
YF40.2 [p1338-1343]
Lecture 17:
potential barriers and tunnelling
step function
tunnelling animation
fusion in the sun
another nice article on fusion in the sun
radioactive decay
YF 40.4 p1437-1350
Lecture 18:
review of 1D: moving to 3D
harmonic oscillator
YF40.5 p1358-1363
YF41.1 p1364-1366
Lecture 19:
3D cartesian - box and harmonic oscillator
2D infinite well
2D harmonic oscillator
YF41.2 p1366-1371
Lecture 20:
Hydrogen
vector model of orbital angular momentum
radial probability distribution
3d probability distribution
visualisation of last weeks homework!
YF41.3 p1372-1379
Lecture 21:
Zeeman effect and electron spin
zeeman effect
Stern-Gerlach experiment
YF41.4-41.5 p1379-1387
Lecture 22:
Pauli exclusion principle and atomic structure of other elements
single SG experiment
multiple SG experiments
YF41.6 p1387-1393
self reading: X-ray spectra: YF41.7 p1393-1396
self reading: molecules : YF42
Lecture 23:
nuclear structure
YF43.1-2 p1439-1449
self reading: remainder of chaper 43
Lecture 24:
summary of particle physics
nice introduction to meaning of quantum mechanics
YF44.1-5 p1480-1516
self reading: remainder of chaper 44
Lecture 25:
Revision notes (3rd term)