PHYS 270, Spring 2018
General Physics: Electrodynamics, Light, Relativity and Modern Physics
Prof. Victor M. Yakovenko

Textbook: Young and Freedman "University Physics"
14th edition, Pearson, 2016, ISBN-13: 978-0-321-97361-0

Timeline of the course

Mondays, Wednesdays, and Fridays, 1 - 1:50 pm, room 1412 PHY (Toll Physics Building)

The text above and at the update point is the current timeline of the course. The text below the update point is a tentative schedule from Spring 2017 (when a different textbook was used). The update point will be moving down during the semester, and the timeline will be progressively updated.
The dates of midterm exams are tentative and may change. The timing of the common final exam is definitive.
Lecture demonstration codes refer to http://lecdem.physics.umd.edu

Week 1
Wed, Jan 24 Introductory organizational lecture
Practice HW issued: Getting Started with Expert TA, due Wed, Jan 31
Fri, Jan 26 Ch. 27 Magnetic Field and Magnetic Forces
27.1 Magnetism 24.2 Magnetic Field
27.3 Magnetic Field Lines and Magnetic Flux; Gauss's Law for Magnetism;
Electric dipole vs. magnetic dipole; No magnetic monopoles
27.2 Magnetic Forces on Moving Charges; The Lorentz force
Lecture Demonstration: J5-35 J5-05 J5-06 K1-14
Week 2
Mon, Jan 29 27.4 Motion of Charged Particles in a Magnetic Field
27.5 Applications: Cyclotron, Magnetic bottle, Van Allen belts, Velocity selector
Thomson's e/m experiment, Mass spectrometers
27.6 Magnetic Force on a Current-Carrying Conductor
Lecture Demonstration: K1-03
HW 1 issued: Magnetic Forces, due Tue, Feb 6
Wed, Jan 31 27.6 Magnetic Force on a Current-Carrying Conductor
27.7 Force and Torque on a Current Loop; Magnetic Moment
27.8 The Direct-Current Motor
Lecture Demonstration: K1-22 K1-23 K4-24
Fri, Feb 2 27.7 Potential energy of magnetic moment in magnetic field
27.8 The Direct-Current Motor
Ch. 28 Sources of Magnetic Field
28.1 Magnetic Field of a Moving Charge
28.2 Magnetic Field of a Current Element; The Biot-Savart law
Lecture Demonstration: K1-22 J5-33 J5-18
Week 3
Mon, Feb 5t 28.3 Magnetic Field of a Straight Current-Carrying Conductor
28.4 Force between Parallel Conductors; the definition of Ampere
28.6 Ampere's Law; line integrals
Lecture Demonstration: J5-14
HW 2 issued: Sources of Magnetic Field, due Tue, Feb 13
Wed, Feb 7 28.6 General form of Ampere's Law
28.7 Applications of Ampere's Law: thick wire
28.5 Magnetic Field of a Circular Current Loop
Lecture Demonstration: J5-15 J5-16
Fri, Feb 9 Example 28.9 Magnetic field of a solenoid
28.8 Magnetic Materials
Lecture Demonstration: J5-16 J7-23
Week 4
Mon, Feb 12 Ch. 29 Electromagnetic Induction
29.1 Induction Experiments 29.2 Faraday's Law; Electric Generators
29.4 Motional Electromotive Force 27.8 Back EMF
Lecture Demonstration: K2-02 K2-04 K4-01
HW 3 issued: Electromagnetic Induction, due Tue Feb 20
Wed, Feb 14 29.5 Induced Electric Fields 29.6 Eddy Currents 29.3 Lenz's Law
Lecture Demonstration: K2-02 K2-04 K2-42 K2-43 K2-44
Fri, Feb 16 29.8 Superconductivity
Ch. 30 Inductance
30.1 Mutual Inductance 31.6 Transformers
30.2 Self-Inductance and Inductors 30.3 Magnetic-field Energy
Lecture Demonstration: I7-21 K2-25 K2-27 K2-11 K7-04 K3-04 K3-06
Week 5
Mon, Feb 19 30.3 Magnetic-field Energy 30.5 The LC Circuit
Lecture Demonstration: K7-03
HW 4 issued: Inductance, due Tue Feb 27
Wed, Feb 21 30.4 The LR Circuit 30.6 The L-R-C Series Circuit
Ch. 31 Alternating Current
31.1 Phasors and Alternating Currents 31.2 Resistance and Reactance
Lecture Demonstration: K7-01
Fri, Feb 23 31.2 Inductive and Capacitive Reactance 31.3 The L-R-C Series Circuit
31.5 Resonance in AC Circuits
Lecture Demonstration: K7-27 J4-41
Week 6
Mon, Feb 26 31.4 Power in AC Circuits 31.1 RMS values 31.6 Transformers
Lecture Demonstration: J4-41 K3-06
HW 5 issued: AC Circuits, due Tue Mar 6
Wed, Feb 28 29.7 Displacement Current; Generalized Ampere's Law; Induced magnetic field
Ch. 32 Electromagnetic Waves
32.1 Maxwell's Equations
Lecture Demonstration: K2-63 K8-01 K8-05
Fri, Mar 2 Midterm Exam #1 online: Ch. 27, 28, 29, and 30
Week 7
Mon, Mar 5 32.2 Plane Electromagnetic Waves; Speed of Light Measurement
Derivation of the Electromagnetic Wave Equation
Lecture Demonstration: K8-01 K8-03 K8-04 K8-05
HW 6 issued: Electromagnetic Waves, due Tue Mar 13
Wed, Mar 7 32.3 Sinusoidal Electromagnetic Waves 32.1 The Electromagnetic Spectrum
AM vs. FM radio; "Rabbit-ears" and loop antennas for TV
Lecture Demonstration: K8-01 K8-03 K8-04 K8-05 home TV antenna
Fri, Mar 9 32.4 Energy and Momentum of Electromagnetic Waves; The Poynting Vector
Radiation Pressure; Spherical Waves; Dipolar antenna; Polarization
Lecture Demonstration: K8-01 K8-42
Week 8
Mon, Mar 12 Solar intensity and solar panels for renewable energy
32.5 Standing Electromagnetic Waves in a Cavity
33.5 Polarization of Electromagnetic Waves: linear, circular, Malus's Law
Lecture Demonstration: K8-01 K8-42 M7-03 Polaroid sunglasses
HW 7 issued: Propagation of Light, due Tue Mar 27
Wed, March 14 Ch. 33 The Nature and Propagation of Light
33.5 Polarization of Electromagnetic Waves: linear, circular, by reflection, Malus's Law
32.3 Speed of Light in Matter; Index of Refraction; Reflection from metals; Metamaterials
Lecture Demonstration: K8-05 M7-03 Polaroid sunglasses
Fri, Mar 16 33.1 The Nature of Light; Wave Fronts and Rays 33.7 Huygens' principle
33.2 Reflection and Refraction; Snell's Law
Lecture Demonstration: L4-06
Spring Break
Week 9
Mon, Mar 26 33.3 Total Internal Reflection 33.4 Color and Dispersion 33.6 Scattering of Light
Ch. 34 Geometric Optics
34.1 Reflection and Refraction at a Plane Surface; Sign rules
HW 8 issued: Geometric Optics, due Tue Apr 3
Lecture Demonstration: L5-01 L5-02 L5-13
Wed, Mar 28 34.2 Reflection at a Spherical Surface; Focal length; Concave vs. convex mirrors
Lateral magnification; Erect vs. inverted images; Graphical Methods for Mirrors
Lecture Demonstration: L3-31
Fri, Mar 30 34.3 Refraction at a Spherical Surface; the limit of flat surface
34.4 Thin Lenses: convergent, divergent; The Lensmaker's Equation; Graphical Methods
Lecture Demonstration: L4-04
Optional Reading:
34.5 Cameras 34.6 The Eye 34.7 The Magnifier 34.8 Microscopes and Telescopes
Week 10
Mon, Apr 2 Lens focusing in terms of wave fronts
Ch. 35 Interference
35.1 Interference and Coherent Sources; Constructive and Destructive Inverference
35.2 Two-Source (Two-Slit) Interference of Light
Lecture Demonstration: M1-11 M1-12
HW 9 issued: Interference, due Tue Apr 10
Wed, Apr 4 Midterm Exam #2 online: Ch. 31, 32, 33, and 34
Fri, Apr 6 35.2 Two-Slit Interference of Light; Maximal number of fringes
35.3 Intensity in Interference Patterns
Lecture Demonstration: M1-11 M1-12
Week 11
Mon, Apr 9 Directional pattern from two slits with a phase shift
35.4 Interference in Thin Films; Phase shift upon reflection; (Anti)Reflective Coatings
HW 10 issued: Diffraction, due Tue Apr 17
Wed, Apr 11 35.5 The Michelson Interferometer; The Michelson-Morley Experiment
Detection of gravitational waves by LIGO
Ch. 36 Diffraction
36.1 Diffraction vs. Interference; Fresnel vs. Fraunhofer
36.4 Multiple Slits 36.5 The Diffraction Grating
Lecture Demonstration: M3-01
Fri, Apr 13 36.5 The Diffraction Grating 36.6 X-Ray Diffraction
36.2 Diffraction from a Single Slit and its Intensity 36.3
Lecture Demonstration: M1-22 M1-34 M1-41 M1-02
Week 12
Mon, Apr 16 36.4 Two Slits of Finite Width 36.7 Circular Apertures and Resolving Power
36.8 Holography
Ch. 37 Relativity 37.1 Invariance of Physical Laws; Einstein's two postulates
Lecture Demonstration: M1-11 M2-01 M6-11
HW 11 issued: Relativity, due Tue May 1
Wed, Apr 18 37.1 The Ultimate Speed Limit; The Galilean Coordinate Transformation
37.2 Relativity of Simultaneity 37.3 Relativity of Time Intervals
Time Dilation and Proper Time; The Twin Paradox
Fri, Apr 20 Muon lifetime and travel distance through atmosphere
37.4 Relativity of Length; Length contraction parallel the relative motion
No length contraction for perpendicular motion
37.5 The Lorentz Transformations of coordinates
Week 13
Mon, Apr 23 37.5 The Lorentz Transformations of velocity
37.6 The Doppler Effect for Electromagnetic Waves; Red shift of expanding Universe
37.7 Relativistic Momentum
HW 12 issued: Quantum Physics, due Tue May 8
Wed, Apr 25 37.7 Relativistic Momentum; Newton's 2nd Law; Motion in electric and magnetic fields
Relativity of electric and magnetic fields
37.8 Relativistic Work and Energy; Kinetic Energy and Rest Energy E=mc2
Transformation of mass into energy in nuclear reactions; Decay of a neutron
Energy as a function of momentum; Photon as a particle with zero mass
Optional Reading:
37.9 Introduction to General Relativity
Fri, Apr 27 Ch. 38 Photons: Light Waves Behaving as Particles
38.1 Light Absorbed as Photons: The Photoelectric Effect; Einstein's Explanation
Solar Cells and Light-Emitting Diodes (LED)
Optional Reading:
38.2 Light Emitted as Photons: X-Ray Production

Lecture Demonstration: P2-02 K15-12
Week 14
Mon, April 30 38.1 Photon Momentum 38.3 Compton Scattering of Photons; Pair Production
38.4 Wave-Particle Dualism: Probability, the Heisenberg Uncertainty Principle
Lecture Demonstration: P2-11
Wed, May 2 Ch. 39 Particles Behaving as Waves
39.1 Electron Waves (according to de Broglie); Electron diffraction; Electron Microscope
39.2 The Atom; Line Spectra; Rutherford's Model of the Atom
39.3 Energy Levels and Bohr's Model of the Atom
Optional Reading:
39.4 The Laser 39.5 Continuous Spectra; Blackbody Radiation

Lecture Demonstration: P2-13 N2-06
Fri, May 4
update point
Ch. 40 Quantum Mechanics in 1D: Wave Functions
40.1 Wave Functions and the time-dependent Schroedinger's Equation
Stationary states and the time-independent Schroedinger's Equation
Interpretation of the wave function; Probability density
Lecture Demonstration: P2-13
Week 15
Mon, May 7 40.2 Particle in a Box; Energy Levels; Probability and Normalization; Time Dependence
40.6 Measurement in Quantum Mechanics 40.1 Wave packets
38.4 Two-wave superposition: momentum-coordinate and energy-time uncertainties
39.6 Two Slits and the Heisenberg Uncertainty Principle Revisited
Prof. Yakovenko is away, substituted by Dr. Matt Severson
Wed, May 9 Midterm Exam #3 online: Ch. 35, 36, 37, 38, and 39, Prof. Yakovenko is away
Common Final Exam
Tue, May 15 6:30-8:30 pm in Room 0204 of Architecture Building (ARC, Bld 145)

Last updated May 4, 2018