Below are a sample some popular demonstrations used in a particular class. Consider using these in your classes, or learn more about a demo you saw while taking that class.
PHYS142 Demonstrations - List
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J1-01 TRIBOELECTRICITY - CHARGING BY FRICTION
Demonstrates "charging by friction" Read More
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J1-21 ELECTROSTATIC ATTRAC AND REPULS - CHARGED CYLINDERS
Demonstrates electrostatic attraction and repulsion Read More
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J1-24 ELECTROSTATIC HAIR RAISING
Demonstrates electrostatic repulsion Read More
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J1-25 VAN DE GRAAFF - TRAINED RABBIT
Demonstrates electrostatic repulsion Read More
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J1-26 VAN DE GRAAFF - REPULSION OF PIE PANS
Demonstrates electrostatic repulsion Read More
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J3-08 VAN DE GRAAFFS - INTERACTING FIELDS
Shows field lines for two identical charges Read More
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J3-13 POTENTIAL SURFACE MODEL WITH E FIELD VECTORS
Illustrates the relationship between the electrostatic potential and the electric field Read More
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J3-14 FLUX MODEL - ELECTROSTATICS
Aid in visualizing flux at an angle through a surface Read More
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J3-21 FARADAY CAGE
Demonstrates that the electric field within a closed conducting surface is zero Read More
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J3-23 FARADAY CAGE - RADIOWAVES
Demonstrates that radio waves cannot penetrate a Faraday cage Read More
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J3-24 HOLLOW CONDUCTING SPHERE
Demonstrates that charge resides on the outside surface of a conductor Read More
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J4-01 PARALLEL PLATE CAPACITOR
Demonstrates that potential difference across a capacitor is proportional to the plate separation Read More
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J4-04 PARALLEL PLATE CAPACITOR - IONIZATION OF AIR
Demonstrates the mobility of ions Read More
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J4-22 PARALLEL PLATE CAPACITOR WITH DIELECTRIC
Demonstrates that inserting a dielectric into a capacitor increases the capacitance Read More
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J4-31 ENERGY STORED IN A CAPACITOR
Demonstrates that energy is stored in a capacitor and how that energy may be used Read More
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J4-32 DISCHARGE OF CAPACITOR WITH BANG
Demonstrates that capacitors store electrical energy Read More
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J5-33 TORQUE ON A BAR MAGNET
Demonstrate the torque on a bar magnet in a magnetic field Read More
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K1-02: FORCE BETWEEN CURRENT-CARRYING WIRES - PROJECTION
Demonstrates the force between two adjacent parallel current-carrying wires Read More
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K1-03 FORCE ON CURRENT IN MAGNETIC FIELD
Demonstrates force on a current-carrying wire in a magnetic field Read More
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K1-12 CATHODE-RAY TUBE - DEFLECTION BY MAGNET
Demonstrates the force on an electron beam by a magnetic field Read More
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K1-14 OSCILLOSCOPE CRT - DEFLECTION BY MAGNET
Demonstrates the force on an electron beam by a magnetic field Read More
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K1-21 TORQUE ON CURRENT LOOP IN MAGNETIC FIELD
Demonstrates the torque on a current loop in a magnetic field Read More
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K1-22 TORQUE ON 500-TURN COIL IN MAGNETIC FIELD
Demonstrates the torque on a current loop in a magnetic field Read More
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K2-01 EARTH INDUCTOR
Induces an emf by moving a coil through Earth's magnetic field Read More
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K2-02 INDUCTION IN A SINGLE WIRE
Demonstrates magnetic induction Read More
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K2-22 INDUCTION COIL WITH LIGHT BULB
Demonstrates magnetic induction with 110 VAC Read More
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K2-42 LENZ'S LAW - MAGNET IN ALUMINUM TUBE
Demonstrates Lenz's law Read More
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K2-44 EDDY CURRENT PENDULUM
Shows the damping of pendula due to eddy currents Read More
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K2-62 CAN SMASHER - ELECTROMAGNETIC
Blasts a cola can into two pieces using electromagnetism Read More
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K6-11 CIRCUIT PARADOXES
Series-parallel circuits to encourage discussion about DC circuits Read More
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K7-03 INDUCTOR DELAYING A LAMP
Demonstrates the timing of current in a switched inductor circuit Read More
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K8-01 ELECTROMAGNETIC WAVE - MODEL
Shows the relationship between the electric and magnetic field vectors in a plane-polarized traveling electromagnetic wave Read More
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K8-45 RADIO WAVES FROM SPARK
Demonstrates that a spark contains radio waves Read More
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L3-19 PENNY AND PARABOLIC MIRRORS
Classic illusion of penny levitating above a pair of parabolic concave mirrors Read More
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L4-01 OPTICAL BOARD - RECTANGULAR SLAB
Demonstrates refraction. Shows displacement of rays in a uniform slab of glass Read More
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L4-02 REFRACTION - BEER MUG IN WATER
Illustrates refraction Read More
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L4-03 REFRACTION - ROD IN WATER
Demonstrates refraction Read More
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L4-06 REFRACTION IN CLOUDY WATER
Demonstrates how a light ray bends when it enters a different medium at an oblique angle Read More
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L4-31 DISAPPEARANCE OF GLASS IN LIQUID
Demonstrates how index of refraction affects what we see in a fluid bath Read More
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L5-11 LASER WATERFALL
To demonstrate total internal reflection of a laser beam in a water jet Read More
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