PY106 Demos - Spring 1998

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Course schedule:

• section A - MWF 8 am in SCI 107 - Duffy
• section B - MWF 2 pm in SCI 107 - Carey
• Section C - MW 6 pm in SCI 107 - Erramilli

Day 1 - 1-12-98
Section A and section B - Electric Charge , Electrostatic Charging

• Rods, fur, and silk 5A10.10
• Rods and pivot 5A20.10
• Electroscope 5A22.10
• Can attracted to charged rod 5A40.20
• Deflection of a water stream 5A40.40

Section C in addition to above (add Coulomb's law)

• Charging an electroscope by induction
• Pith balls 5A20.20
• 2 x 4 5A40.30

Day 2 - 1-14-98
Section A and section B - Coulomb's law

• Charging an electroscope by induction
• Pith balls 5A20.20
• 2 x 4 5A40.30
• Confetti 5B10.25 (A section only)

Section C - Electric field

• Confetti 5B10.25
• Fuzzy fur field tank 5B10.40

Day 3 - Electric field
1-16-98 : Section A and section B

• Confetti 5B10.25 (B section only)
• Fuzzy fur field tank 5B10.40 (A section only)
• Ball and snake

Day 4 - Electric field
1-21-98

• Fuzzy fur field tank 5B10.40 (B section)
• Faraday ice pail 5B20.10 (A section)

Day 5 - Gauss' law; Potential energy and potential
1-23-98

• Radio in a cage 5B20.35 (A and B)

Day 6 - More potential; Capacitance and dielectrics
1-26-98

• Faraday ice pail 5B20.10 ( B section)
• Point and ball with van de Graaff 5B30.35 (A section)
• Pinwheel 5B30.50 (A section)
• Parallel plate capacitor 5C10.20 (C section)
• Capacitor with dielectrics 5C20.10(C section)
• Short a capacitor 5C30.20(C section)
• Light a bulb with a capacitor 5C30.30(A and C sections)

Day 7 - Capacitance and dielectrics, Batteries and current
1-28-98

• Parallel plate capacitor 5C10.20 (A and B)
• Capacitor with dielectrics 5C20.10 (A and B)
• Short a capacitor 5C30.20(A and B)
• Lemon battery 5E40.25 ( A and C)
• Two-potato clock 5E40.26 (A and C)
• Dependence on length over area 5D10.88 (C)

Day 8 - Batteries and current; Resistance
1-30-98

• Jacob's ladder 5D40.10 (A)
• Assorted cardboard tubes of various cross-sectional area (A)
• Dependence on length over area 5D10.88 (A and B)
• Lemon battery 5E40.25 (B)
• Two-potato clock 5E40.26 (B)
• Assorted balls to roll down from the back of 107 - a model of resistance as the balls (electrons) get intercepted by chairs and feet (atoms). (B)

Day 9 - Resistance in series and parallel
2-2-98

• Series and parallel light bulbs 5F20.50
• Kirchoff's law 5F20.10
• Continuity of current 5F20.15

Day 10 - Kirchoff's Rules
2-4-98

• Series and parallel light bulbs 5F20.50

Day 11 - More Kirchoff's Rules
2-6-98

• Kirchoff's law 5F20.10
• Continuity of current 5F20.15

Day 12 - Magnetic fields
2-9-98

• Magnet and iron filings 5H10.30
• Big magnet with ball bearings 5H10.34
• Iron filings around a wire 5H15.10
• Solenoid and iron filings 5H15.40

Day 13 - Forces on moving charges in magnetic fields
2-11-98

• Cathode ray tube 5H30.10
• Parallel wires 5H40.10
• Jumping wire 5H40.30

Day 14 - Magnetic materials
2-13-98

• Cathode ray tube 5H30.10
• DC motor 5K40.10
• Electromagnet
• Meissner effect 5G50.50 (A)

Day 15 - Induced emf
2-17-98

• Induction coils with magnet, galvanometer 5K10.20
• Motional emf

Day 16 - Faraday's law, Lenz's law
2-18-98

• Induction coils with magnet, galvanometer 5K10.20
• Eddy current pendulum 5K20.10
• Magnet falling in eddy tube 5K20.25

Day 17 - Electric generators
2-20-98

• Hand crank generator 5K40.80
• Coupled genecons

Day 18 - Review for test 1
2-23-98

Day 19 - Inductance and transformers
2-25-98

• Induction coils with magnet, galvanometer 5K10.20
• Dissectible transformer 5K30.20

Day 20 - AC Circuits
2-27-98

• RC Circuit (B)
• AC with just R, just C, or just L 5L10.17

Day 21 - Resonance in AC Circuits
3-2-98

• Phase relationships and resonance 5L20.19

Day 22 - More AC Circuits; EM Waves
3-4-98

• Phase relationships and resonance 5L20.19
• Mac showing an EM wave (A)

Day 23 - EM Waves, polarized light
3-6-98

• Mac showing an EM wave (B)
• Polaroids on the overhead 6H10.10
• Three polaroids 6H30.10

Day 24 - Polarized light; Reflection
3-16-98

• Polaroids on the overhead 6H10.10
• Three polaroids 6H30.10
• Mirage
• Flat and spherical mirrors
• Corner-cube reflector
• Blackboard optics - plane mirror 6A10.10 (C)
• Blackboard optics - curved mirrors 6A20.10 (C)

Day 25 - Reflection; spherical mirrors
3-18-98

• Mirage
• Spherical mirrors
• Blackboard optics - plane mirror 6A10.10
• Blackboard optics - curved mirrors 6A20.10

Day 26 - Refraction
3-20-98

• Blackboard optics - refraction 6A42.10
• Refraction using Brewster's angle demo 6H20.10

Day 27 - Total internal reflection
3-23-98

• laser and fiber optics, light pipes 6A44.40
• water-stream light pipe 6A44.45

Day 28 - Brewster's angle; Dispersion; lenses
3-25-98

• Brewster's angle 6H20.10
• project the spectrum 5N30.10
• Blackboard optics - thin lens 6A60.10

Day 29 - Lenses; the human eye
3-27-98

• Blackboard optics - thin lens 6A60.10
• Model of the human eye with blackboard optics

Day 30 - Double slit; thin-film interference
3-30-98

• Double slit and laser 6D10.10
• Ripple tank - double source 3B50.20
• Moire pattern transparencies 3B50.40
• Newton's rings 6D30.10
• Interference with two pieces of glass

Day 31 - Thin-film interference
4-1-98

• Newton's rings 6D30.10
• Soap film interference 6D30.20
• Interference with two pieces of glass

Day 32 - Diffraction; resolving power
4-3-98

• Single slit and laser 6C10.10
• Laser beam and circular opening
• Ripple tank - single slit 3B50.10
• Resolving power using two light bulbs

Day 33 - Review; diffraction gratings
4-6-98

• Jumping ring 5K20.30
• Gratings and laser 6D20.15

Day 34 - Diffraction gratings
4-8-98

• Gratings and laser 6D20.15
• Optical analog of x-ray diffraction 7A60.24

Day 35 - Relativity
4-10-98

Day 36 - Photo-electric effect
4-13-98

• Photo-electric effect in zinc 7A10.10

Day 37 - The atom
4-15-98

• Student gratings and line sources 7B10.10

Day 38 - The Bohr model
4-17-98

• Vibrating circular wire 7A50.40

Day 39 - Quantum mechanics
4-22-98

Day 40 - Radioactivity
4-24-98

• Geiger counter and samples 7D10.10

Day 41 - Radioactivity; Nuclear reactions
4-27-98

• Muon detector 7D30.96
• Mousetrap chain reaction 7D20.10

Day 42 - Review
4-29-98

• Levitron
• Bicycle-wheel gyro 1Q50.24