Master List of Available Demos and Order Page

The demonstrations in this index include nearly all of the PIRA 200 and then some local favorites.

The PIRA 200 represent the most commonly physics demonstrations
used by major universities in the United States. Other demos outside of the
Physics Instruction Resource Association's Top 200 are so noted.

Demo Requests, are due before we close on the weekday afternoon, prior to your class date.

Business hours are Monday thru Friday, 8:00 AM - 4:00 PM, excepting holidays.

- Same day demo requests are problematic for all involved. -

Demonstration Ordering Procedure:

1) Click on the boxes next to the appropriate demonstrations to select a demo for your request.

    An [x] will appear in the box. (Example: _[x]_ 1A60.10 Scaling: Powers of Ten)

2) For a demonstration description, click on the blue PIRA demo number.
    The blue PIRA number links to a photo and a short description of each demonstration.

3) After selecting your demonstrations, click on the Go to Form link or scroll to end of this page.

    Go to Form is a link that automatically scrolls down to the bottom/end of this web page.

4) Enter and select the required information into the provided form located at bottom of this page.

    Special Note: Without the proper faculty member's name, password, day of demos, time and room entered into the form fields, our office will not be able to process your demo request.

5) After checking to see if the above fields are correctly filled in, click on the SUBMIT icon.
    This will process the demo request to our Calendar Page.

6) Suggestion: As a final step, click on the word verify on the next screen to verify the requests were processed correctly.

Index of Available Demonstrations

Click on the topic or subtopic to directly access a section of the index.
Scrolling down with the scroll bar on the right will access demonstrations sequentially.

Topic Subtopics Continued
PIRA Section 1
1A - Measurement
1C - Motion in One Dimension
1D - Motion in Two Dimensions
1F - Newton's First Law
1G - Newton's Second Law
1H - Newton's Third Law
1J - Statics of Rigid Bodies
1K - Applications of Newton's Laws
1L - Gravity
1M - Work and Energy
1N - Linear Momentum & Collisions
1Q - Rotational Dynamics
1R - Properties of Matter
Fluid Mechanics
PIRA Section 2
2A - Surface Tension
2B - Fluid Statics
2C - Fluid Dynamics
Oscillations and Waves
PIRA Section 3
3A - Oscillations
3B - Wave Motion
3C - Acoustics
3D - Instruments
PIRA Section 4
4A - Thermal Properties of Matter
4B - Heat and the First Law
4C - Change of State
4D - Kinetic Theory
4E - Gas Law
4F - Entropy and the Second Law
Electricity and Magnetism
PIRA Section 5
5A - Electrostatics
5B - Electric Fields and Potential
5C - Capacitance
5D - Resistance
5E - Electromotive Force and Current
5F - DC Circuits
5G - Magnetic Materials
5H - Magnetic Fields and Forces
5J - Inductance
5k - Electromagnetic Induction
5L - AC Circuits
5N - Electromagnetic Radiation
PIRA Section 6
6A - Geometric Optics
6B - Photometry
6D - Interference
6F - Color
6H - Polarization
6J - The Eye
Modern Physics
PIRA Section 7
7A - Quantum Effects
7B - Atomic Physics
7D - Nuclear Physics

Mechanics: PIRA Section 1

1A - Measurement

1A10.20 Basic Units: Standard of Mass (Call for Availability)
1A10.30 Basic Units: Standard of Length
1A10.35 Basic Units: Meter Stick
1A10.50 Basic Units: One Liter (1 dm3) Cube
1A40.10 Vectors: Components of a Vector
1A40.30 Vectors: Vector Addition and Subtraction
1A50.10 Math Topics: Radian Disc
1A60.10 Scaling: Powers of Ten

1C - Motion in One Dimension

1C10.10 Velocity: Bulldozer and Moving Sheet/2D
1C20.10 Uniform Acceleration: Penny and Feather
1C30.10 Measuring g: Freefall Timer (Painter 2.48 Use Only)

Go to Form

1D - Motion in Two Dimensions

1D15.10 Velocity, Position, and Acceleration: Ultrasonic Detector and Students (Call for Availability)
1D40.10 Motion of the Center of Mass: Throw Objects
1D50.10 Central Forces: Ball on a String
  * 1D50.25 Central Forces: Conical Pendulum Apparatus needs Repair, (Use Ball & String)
1D50.40 Central Forces: Pail of Water, Pail of Nails
1D50.70 Central Forces: Rolling Chain
1D52.33 Deformation by Central Forces: Cork and Ball in Water Centrifuge
1D60.10 Projectile Motion: Howitzer and Tunnel
1D60.20 Projectile Motion: Simultaneous Fall
1D60.30 Projectile Motion: Monkey and Hunter

1F - Newton's First Law

1F10.20 Measuring Inertia: Lead and Stryrofoam Bricks
1F20.10 Inertia of Rest: Inertia Ball
1F20.25 Inertia of Rest: Smash block on Bed of Nails (PIRA 1000 / UT Favorite)
1F20.32 Inertia of Rest: Stacked Blocks with Tack Hammer
1F30.10 Inertia of Motion: Air Track, (Painter 2.48 Use Only)

Go to Form

1G - Newton's Second Law

1G10.30 Force, Mass, and Acceleration: Mass and a Scale
1G10.40 Force, Mass, and Acceleration: Atwood's Machine

1H - Newton's Third Law

1H10.10 Action and Reaction: Push Me Pull Me Carts
1H11.20 Recoil: Tennis Ball Cannon (FIRE HAZARD - Restricted Use.)

1J - Statics of Rigid Bodies

1D40.10 Motion of the Center of Mass: Throw Objects with Black Light"
1J10.10 Finding Center of Gravity: Map of Texas
1J11.20 Exceeding Center of Gravity: Tower of Lire
1J11.50 Exceeding Center of Gravity: Double Cone
1J20.25 Stable, Unstable, and Neutral Equilibrium: Nine Nails on One (PIRA 1000)
1J20.30 Stable, Unstable, and Neutral Equilibrium: Skyhook (PIRA 500)
1J20.45 Stable, Unstable, and Neutral Equilibrium: Tightrope Walking (Call for Availability)
1J20.60 Stable, Unstable, and Neutral Equilibrium: Wine Butler (PIRA 500)
1J30.10 Resolution of Forces: Suspended Block
1J30.25 Resolution of Forces: Rope and Three Students
1J40.10 Static Torque: Grip Bar
1J40.15 Static Torque: Torque Wrench
1J40.20 Static Torque: Meter Stick Balance
1J40.50 Static Torque: Roberval Balance (PIRA 500)

Go to Form

1K - Applications of Newton's Laws

1K10.20 Dynamic Torque: Ladder Against the Wall
1K10.30 Dynamic Torque: Walking the Spool
1K20.20 Friction: Area Dependence of Friction (PIRA 500)
1K20.35 Friction: Angle of Repose (PIRA 500)
1K30.10 Pressure: Bed of Nails

1L - Gravity

1L10.10 Universal Gravitational Constant: Cavendish Balance Video
1L10.20 Universal Gravitation Constant: Cavendish Balance Model
  *  Youtube Cavendish Video, a 24 second animation

Go to Form

1M - Work and Energy

1G10.30 Force, Mass, and Acceleration: Mass and a Scale
1M10.20 Work and Energy: Pile Driver (PIRA 200)
1M20.10 Simple Machines: Compound Pulley (PIRA 500)
1M40.xx Conservation of Energy: Rube Goldberg Device (Painter 2.48 Use Only)
1M40.10 Conservation of Energy: Nose Basher
1M40.15 Conservation of Energy: Stopped Pendulum
1M40.20 Conservation of Energy: Loop the Loop
1M40.40 Conservation of Energy: Ballistic Pendulum (Painter 2.48 Use Only)

1N - Linear Momentum and Collisions

1N10.20 Impulse and Thrust: Egg in Sheet (Bring Your Own Egg)
1N21.10 Mass and Momentum Transfer: Floor Carts and Medicine Ball (PIRA 500)
1N22.20 Rockets: Water Rockets (Very Low Success Rate in Classroom)
1N30.10 Collisions in One Dimension: Collision Balls
1N30.20 Collisions in One Dimension: 3:1 Collision Balls (PIRA 1000 / UT Favorite)
1N30.30 Collisions in One Dimension: Elastic and Inelastic Collisions on the PASCO AIR Track with Gliders
1N30.60 Collisions in One Dimension: Double Ball Drop (PIRA 500)
1N40.20 Collisions in Two Dimensions: Air Table Collisions
- Needs Repair 9/12/16 - (Painter 2.48 Use Only)

Go to Form

1Q - Rotational Dynamics

1Q10.13 Moment of Inertia: Balancing Stick (UT Favorite)
1Q10.30 Moment of Inertia: Ring, Disk, and Sphere
1Q10.45 Moment of Inertia: Rotational Inertia of Large and Small Toilet Paper Rolls (UT Favorite)
1Q10.50 Moment of Inertia: Racing Soups (PIRA 500)
1Q40.10 Conservation of Angular Momentum: Rotating Stools with Weights
1Q40.20 Conservation of Angular Momentum: Sqeezatron (PIRA 500)
1Q40.30 Conservation of Angular Momentum: Rotating Stool and Bicycle Wheel
1Q50.20 Gyroscopes: Bicycle Wheel Gyroscope
1Q50.30 Gyroscopes: Motorized Gyroscope (PIRA 1000)
1Q60.10 Rotational Stability: Bicycle Wheel Top

1R - Properties of Matter

1R10.10 Hooke's Law: Stretching a Spring
1R20.15 Tensile and Compressive Stress: Young's Modulus (Painter 2.48 Use Only)
1R30.10 Shear Stress: Shear Book (PIRA 1000)
1R30.20 Shear Stress: Shear Block (PIRA 500)
1R40.30 Coefficient of Restitution: Dead and Live Balls

Go to Form

Fluid Mechanics: PIRA Section 2

2A - Surface Tension

2A20.10 Capillary Action: Capillary Tubes (PIRA 500)

2B - Fluid Statics

2B20.15 Static Pressure: Pressure vs. Depth (PIRA 500)
2B20.40 Static Pressure: Pascal's Vases
2B20.60 Static Pressure: Hydraulic Press (PIRA 500)
2B30.15 Air Pressure: Crush a Soda Can (PIRA 1000)
2B30.30 Atmospheric Pressure: Magdeberg Plates
2B30.50 Atmospheric Pressure: Lift A Stool (PIRA 500)
2B35.15 Measuring Pressure: Mercury Barometer in Tall Bell Jar (Health Hazard - Painter 2.48 Use Only)
2B40.20 Density and Buoyancy: Archimedes' Principle
2B40.30 Density and Buoyancy: Cartesian Diver
2B40.59 Density and Buoyancy: Density Balls
2B40.60 Density and Buoyancy: Hydrometers in Salt verses Fresh Water

2C - Fluid Dynamics

2C20.10 Bernoulli Force: Bernoulli Tubes (PIRA 500)
2C20.30 Bernoulli Force: Floating Ball
2C20.35 Bernoulli Force: Ball and Funnel
2C20.46 Bernoulli Force: Lifting a Paper Card
2C30.50 Viscosity: Terminal Velocity in Water, Glycerin (PIRA 500)

Go to Form

Oscillations and Waves: PIRA Section 3

3A - Oscillations

3A10.10 Pendula: Simple Pendulum
3A10.13 Pendula: Adjustable Length Pendulum (UT Favorite)
3A10.30 Pendula: Torsion Pendulum (PIRA 500)
3A20.10 Springs: Mass on a Spring
3A60.10 Driven Mechanical Resonance: Tacoma Narrows Video
3A60.30 Driven Mechanical Resonance: Barton's Pendula
3A60.50 Driven Mechanical Resonance: Resonance Reeds
3A60.55 Driven Mechanical Resonance: Torsion Pendulum [Leybold] (Rarely Works!)
3A70.25 Coupled Oscillations: Spring Coupled Pendula
3A70.27 Coupled Oscillations: Spring Coupled Physical Pendula, (Unique to UT Austin )
3A70.10 Coupled Oscillations: Wilberforce Pendulum

3B - Wave Motion (and Properties)

3Bxx.xx Wave Motion: Russian Wave Machine (UT Favorite)
3B10.10 Transverse Pulse and Waves: Pulse on a Rope
3B10.20 Transverse Pulses and Waves: Slinky on Table (PIRA 500)
3B10.30 Transverse Pulses and Waves: Shive (Bell Labs) Wave Model
3B10.50 Transverse Pulses and Waves: Vertical Rods Wave Model (PIRA 500)
3B10.75 Transverse Pulses and Waves: Uncoupled Pendulum Wave
3B20.35 Longitudinal Pulses and Waves: Longitudinal Wave Machine (PIRA 1000)
3B22.10 Standing Waves : Melde's String Vibrator
3B22.50 Standing Waves: Slinky Standing Waves (PIRA 1000)
3B27.20 Compound Waves: Wave Superposition Model
3B40.25 Doppler Effect: Doppler Reed
3B55.10 Interference and Diffraction of Sound: Speaker Bar
3B60.10 Beats: Beat Forks
* 3B60.20 Beats: Beats on a Scope - (Call for Availability) -
3B70.10 Coupled Resonators: Coupled Tuning Forks

Go to Form

3C - Acoustics

3C20.11 Pitch: Range of Hearing

3D - Instruments

3D30.35 Resonance Cavities: Bloogles (PIRA 500)
3D30.70 Resonance in Air Columns: Hoot Tubes
3D32.10 Air Column Instruments: Organ Pipes (PIRA 1000)
3D40.20 Resonance in Plates, Bars, and Solid: Singing Rod
3D40.30 Resonance in Plates, Bars, and Solids: Chladni Plates

Go to Form

Thermodynamics: PIRA Section 4

4A - Thermal Properties of Matter

4A30.xx Solid Expansion: Linear Expansion of a Metal Rod (UT Favorite)
4A30.10 Solid Expansion: Bimetal Strip
4A30.20 Solid Expansion: Ball and Ring
4A40.10 Properties of Materials at Low Temperature: Lead Bell
4A40.30 Properties of Materials at Low Temperature: Smash a Rose, Tube, or Ball

4B - Heat and the First Law

4B20.10 Convection: Convection Tube with Water (PIRA 500)

4C - Change of State

4C20.40 Phase Changes: Freezing Liquid Nitrogen (PIRA 500)
4C31.30 Cooling by Evaporation: Drinking Bird

4D - Kinetic Theory

4D20.10 Mean Free Path: Crookes' Radiometer
4D30.10 Kinetic Motion: Cenco Kinetic Theory Apparatus (PIRA 500)

4E - Gas Law

4E10.20 Constant Pressure: Balloons in Liquid Nitrogen
4E20.25 Constant Temperature: Boyle's Law with Syringe on OHP(PIRA 500)
4E20.40 Constant Temperature: Balloon in a Vacuum (PIRA 1000)
4E30.10 Constant Volume: Pressure vs Temperature (PIRA 100)

4F - Entropy and the Second Law

4F30.10 Heat Cycles: Stirling Engine
4F30.20 Heat Cycles: Steam Engine (PIRA 500)

Go to Form

Subindex for Electricity & Magnetism PIRA Section 5
Electricity & Magnetism
PIRA Section 5
5A - Electrostatics
5B - Electric Fields and Potential
5C - Capacitance
5D - Resistance
5E - Electromotive Force and Current
5F - DC Circuits
5G - Magnetic Materials
5H - Magnetic Fields and Forces
5J - Inductance
5k - Electromagnetic Induction
5L - AC Circuits
5N - Electromagnetic Radiation

5A - Electrostatics

5A10.10 Producing Static Charge: Rods, Fur, and Silk
5A20.20 Coulomb's Law: Pith Balls
5A22.10 Electroscopic Meters: Electroscope
5A40.20 Induced Charge: Charge Propelled Cylinder
5A40.70 Induced Charge: Kelvin Water Drop Generator
5A50.10 Electrostatic Machines: Wimshurst Machine
5A50.30 Electrostatic Machines: Van de Graaff Generator

5B - Electric Fields and Potential

5B10.10 Electric Field: Hair on End
5B10.25 Electric Field: Confetti (Puffed wheat)
5B10.40 Electric Field: Fuzzy Fur Field Tank (PIRA 500)
5B20.xx Gauss' Law: Gaussian Models (UT Favorite)
*** 5B20.15 Gauss' Law: Faraday's Ice Pail on Electroscope (Usually Doesn't Work - Call for Availability)

5C - Capacitance

5C10.10 Capacitors: Assorted Capacitors (PIRA 500)
5C10.11 Capacitors: Large Variable Capacitor Model (UT Favorite)
5C10.20 Capacitors : Parallel Plate Capacitor
5C20.30 Capacitance: Dissectible Capacitor
5C30.20 Energy Stored in a Capacitor: Short a Capacitor

Go to Form

5D - Resistance

5D10.10 Resistance: Assorted Resistors (PIRA 500)
5D20.10 Resistivity and temperature: wire coil in LN2
5D20.50 Resistivity and Temperature: Thermistor (PIRA 1000)
5D30.10 Conduction in Solutions: Conductivity of Solutions (PIRA 500)
5D40.10 Conduction in Gases: Jacob's Ladder, (Painter 4.42 Use Only)

5E - Electromotive Force and Current

5E40.60 Cells and Batteries: Simple Battery (PIRA 500)
5E60.20 Piezoelectricity: Piezoelectric Sparker (PIRA 500)

5F - DC Circuits

5F10.10 Ohm's Law: Ohm's Law
5F20.50 Circuit Analysis: Series and Parallel Light Bulbs
5F20.55 Circuit Analysis: Series/Parallel Resistors
5F30.10 RC Circuits: Capacitor and a Light Bulb
5F30.20 RC Circuits: RC Time Constant on Scope (PIRA 500)

Go to Form

5G - Magnetic Materials

5G20.30 Magnet Domains and Magnetization: Magnetic Domain Model
5G20.31 Magnet Domains and Magnetization: 3D Magnetic Domain Models
5G50.50 Temperature and Magnetism: Meissner Effect using Liquid Nitrogen

5H - Magnetic Fields and Forces

5H10.20 Magnetic Fields: Oersted's Effect
5H10.15 Magnetic Fields: Magnetic Dip Needle (PIRA 500)
5H10.30 Magnetic Fields: Magnet and Iron Filings
5H15.10 Magnetic Fields: Iron Filings Around a Wire
5H15.40 Fields and Currents: Solenoid and Iron Filings
5H30.10 Forces on Moving Charges: Open CRT
5H30.20 Forces on Moving Charges: e/m Tube
*** 5H40.10 Forces on Currents in Wires: Parallel Wires (Restricted Use - Call for Availability)
5H40.30 Forces on Current in Wires: Jumping Wire
5H50.10 Torque on Coils: Model Galvanometer

Go to Form

5J - Inductance

5J10.20 Inductance: Back EMF (PIRA 500
5J30.10 LRC Circuits - DC: LRC Ringing (PIRA 500

5K - Electromagnetic Induction

5K10.15 Induced Currents and Forces: Wire and Magnet (PIRA 500)
5K10.20 Induced Currents and Forces: Induction Coil with Magnets
5K10.24 Induced Currents and Forces: Number of Turns and Induced EMF (PIRA 500)
5K10.40 Induced Currents and Forces: Iron Core in Mutual Inductance (PIRA 1000)
5K20.10 Eddy Currents: Eddy Current Pendulum
5K20.25 Eddy Currents: Magnets and Tubes
5K20.30 Eddy Currents: Jumping Ring
5K40.29 DC Generators: CENCO DC Generator & Galvanometer
5K40.10 Motors and Generators: CENCO DC Motor (PIRA 500)
5K40.80 Motors and Generators: Hand-crank Generator
5K40.81 Motors and Generators: Coupled Hand-held Generator & Flashlight
5K30.40 Transformers: Nail Welding Transformer (PIRA 1000)

Go to Form

5L - AC Circuits

5L10.10 Impedance: Inductive Choke (PIRA 500)
5L20.10 RLC Circuits - AC: RLC Phase Differences in a series circuit with a laptop oscilloscope
5L20.20 RLC Circuits AC: RLC - Resonance (PIRA 500)
5L20.26 RLC Circuits AC: LC Circuit w/ Parallel Resonance
5L30.10 Filters and Rectifiers - AC: Bridge Rectifier & LC Filter(PIRA 500)
5L30.20 Filters and Rectifiers: Blinky Whirlygig (PIRA 500)

5N - Electromagnetic Radiation

5N10.60 Transmission Line and Antennas: Radiation from a Dipole(Painter 4.42 Use Only)
  *  Youtube Video, a 36 second animation of wave propagation
5N20.50 Tesla Coil: Glowing Flourescent Lamp, (Painter 4.42 Use Only)
5N30.10 Electromagnetic Spectrum: Project the Spectrum with a Prism

Go to Form

Optics: PIRA Section 6

6A - Geometric Optics

6A10.10 Reflection from Flat Surfaces: Blackboard Optics - Flat Mirror
6A20.10 Reflection from Curved Surfaces: Blackboard Optics - Curved/Convex Mirrors (PIRA 1000)
6A20.35 Reflection from Curved Surfaces: Optic Mirage (UT Favorite)
6A20.41 Reflection From Curved Surfaces: Projected Filament w/ Mirrors (UT Favorite)
6A20.45 Reflection From Curved Surfaces: Convex and Concave Mirror (PIRA 500)
6A42.10 Refraction at Flat Surfaces: Blackboard Optics - Refraction (PIRA 500)
5N30.10 Electromagnetic Spectrum: Project the Spectrum with a Prism
  * Refraction through a Prism - Wikipedia Animated GIF
6A44.25 Total Internal Reflection: Snell's Wheel (PIRA 500)
6A44.40 Total Internal Reflection: Light Pipe/ Laser and Fiber Optics
6A46.10 Rainbow: Rainbow Sphere (PIRA 500)
6A60.10 Thin Lenses: Blackboard Optics - Thin Lenses (PIRA 500)
6A60.30 Thin Lenses: Projected Filament w/ Lenses

6B - Photometry

6B10.15 Luminosity: Inverse Square Model

Go to Form

6C - Diffraction

6C10.10 Diffraction Through a Single Slit: Single Slit and Laser
6C10.15 Diffraction through a Single Slit: Adjustable Slit and Laser
6C20.30 Diffraction Around Objects: Pin Hole Diffraction

6D - Interference

6D10.10 Interference From Two Sources: Double Slits and Lasers
6D20.10 Interference from Multiple Sources: Different Number of Slits
6D20.50 Gratings: Crossed Gratings and Laser (PIRA 500)
6D20.53 Gratings: Diffraction Grating and Laser (UT Favorite)
6D30.10 Thin Films: Newton's Rings
6D30.20 Thin Films: Soap Film Interference
6D40.10 Interferometers: Michelson Interferometer

6F - Color

6F10.10 Synthesis of Color: Projecting Colored Filters (PIRA 500)
6F40.10 Scattering: Sunset (Call for Availability)

6H - Polarization

6H10.10 Polarization: Polaroids on the Overhead
6H10.20 Dichroic Polarization: Microwave Polarization
6H30.40 Polarization: Karo Syrup

Go to Form

6J - The Eye

6J10.10 The Eye: Eye Model

Modern Physics: PIRA Section 7

4D - Kinetic Theory

4D20.10 Crookes' Radiometer - (Incandescent light can be used with PE demo below)
7A10.10 Photoelectric Effect: Photoelectric effect in Zinc
7A60.10 X-Ray and Electron Diffraction: Electron Diffraction
7B10.10 Spectra: Atomic Spectra
7D10.10 Radioactivity: Geiger Counter and Samples

Demo Ordering Instructions:

1) Requested demonstrations have an x clicked into the appropriate box.

2) Go down to the form and fill in all appropriate information.

3 ) Click on the 'Submit This Demo Request' button.

4) A screen will appear showing the request that was sent to us. Please verify this.

5) It is recommended that you click on the word, "verify", on the confirmation screen.

Demo Requests, are due on the weekday afternoon prior to the class day.

Office hours are Monday thru Friday, 8:00 AM - 4:00 PM.

Same day demo requests are problematic for all involved.

Instructions on Ordering Demonstrations


Last name (all lowercase!), or guest

Password, or guest 
Time & Room
Day of Demos

You must select one of the options from the "Choose Time Room #" menu
and "Choose a Specific Date" menu for your request to proceed to our calendar.

Requested demonstrations are restricted to regularly scheduled physics classes taught
in the Painter 2.48 and 4.42 Classrooms.

Notes, Comments, or Instructions
Unlisted Demos
(one demo per line, no punctuation)

Be aware that unlisted demos may or may not be delivered. Also, we will not canabalize a working demo to create an unlisted one.

The available dates and weekdays on the above pull down menu are updated at the end of each workday.

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