Pendula

• 3A10.10 - Simple Pendulum
• 3A10.14 - 4 to 1 Pendulums
• 3A10.21 - Metronome
• 3A10.30 - Torsion Pendulum
• 3A10.40 - Variaible "g" Pendulum

Physical Pendula

• 3A15.10 - Physical Pendulum - Smart Phone
• 3A15.20 - Physical Pendula
• 3A15.40 - Pendula - Arc vs. Ring
• 3A15.50 - Center of Percussion - Baseball Bat
• 3A15.70 - Kater's Pendula

Springs and Oscillators

• 3A20.10 - Simple Harmonic Motion - Mass on Spring
• 3A20.15 - Mass on a Spring - 1 to 4 Masses
• 3A20.30 - Simple Harmonic Motion - Air Track & Hoop Springs
• 3A20.35 - Air Cart Masses and Springs - Air Track & 2 Springs
• 3A20.60 - Simple Harmonic Motion - Ball and Dish
• 3A20.75 - Oscillating Candle

Simple Harmonic Motion

• 3A40.10 - SHM and Rotational Motion - Spring and Mass
• 3A40.21 - SHM and Rotational Motion - Pendulum
• 3A40.25 - Ball on a Track vs. Pendulum
• 3A40.35 - SHM and Rotational Motion - Video

Damped Oscillators

• 3A50.10 - Simple Harmonic Motion - Damped Mass on Spring
• 3A50.15 - Inclined Air Track - Damped Glider
• 3A50.40 - Double Spring Damped Air Glider
• 3A50.44 - Damped Pendulum

Driven Mechanical Resonance

• 3A60.10 - Tacoma Narrows Bridge
• 3A60.30 - Barton's Pendula
• 3A60.40 - Driven Resonance - Pasco Oscillator and Rotating Mass on a Spring
• 3A60.50 - Resonance Gyro - Frahm, Resonance Reeds, and Loops

Coupled Oscillations

• 3A70.10 - Wilberforce Pendulum
• 3A70.15 - Swinging Mass on a Spring
• 3A70.17 - Coupled Oscillators - Pendulum and Mass-Spring Oscillator
• 3A70.20 - Coupled Pendulum
• 3A70.23 - Synchronizing Metronomes
• 3A70.36 - Simple Double Pendulum
• 3A70.40 - Inverted Coupled Pendulum
• 3A70.45 - Coupled Resonance - Springs
• 3A70.50 - Oscillating Magnets

Normal Modes

• 3A75.10 - Coupled Oscillations - Air Track
• 3A75.40 - Bifilar Pendulum

Lissajous Figures

• 3A80.10 - Sand Pendulum
• 3A80.20 - Lissajous Figures - Oscilloscope
• 3A80.40/9C40.60 - Lissajous Figures - Laser and 3 Mirrors
• 3A80.43 - Lissajous Figures - Harmonograph

Non-Linear Systems

• 3A95.10 - Relaxation Oscillators
• 3A95.22 - Compound Pendulum
• 3A95.50 - Chaos Pendula - Chaos Toys
• 3A95.50b - Revolution
• 3A95.51 - Chaos Motor
• 3A95.55 - Change of a Diode
• 3A95.57 - Space Circles
• 3A95.58 - Zeeman Catastrophe Machine
• 3A95.59 - Belousov - Zhabotinsky Reactions
• 3A95.63 - Hula Hoop
• 3A95.67 - Lava Lamp
• 3A95.70 - Variable Length Pendulum - Swing - Pump a Swing
• 3A95.85 - Firehose Instability

Transverse Pulses and Wave

• 3B10.10 - Wave Demo - Spring on Wall and Rope
• 3B10.20 - Wave Demo - Slinky
• 3B10.25 - Inertia of Motion - Standing Pulse - Chain
• 3B10.31 - Straw Wave Machine
• 3B10.60 - Standing Waves - Water Waves
• 3B10.75 - Pendulum Waves
• 3B10.77 - Aliasing
• 3B10.85 - Non - Recurrent Wave Fronts

Longitudinal Pulses and Waves

• 3B20.10 - Hanging Slinky
• 3B20.20 - Waves - Air Track or Rod
• 3B20.30 - Waves - Longitudinal Waves - PASCO model
• 3B20.70 - Crova's Disc

Standing Waves

• 3B22.10 - Standing Waves in a String - Hanging Motor
• 3B22.11 - Standing Waves in a String - Melde's Experiment
• 3B22.12 - Standing Waves in a String - Electrically Driven Tuning Fork
• 3B22.14 - Standing Waves in a Wire
• 3B22.30 - Wave Demo - Wave Machines
• 3B22.40 - Standing Waves in a Rod
• 3B22.50 - Slinky Standing Waves
• 3B22.51 - Standing Pulses in a Spring
• 3B22.70 - Standing Waves - Soap Film Oscillations
• 3B22.90 - Wave Demo - Overhead Wave Model

Impedance and Dispersion

• 3B25.10 - Impedance Matching - Wave Machines
• 3B25.55 - Spring Horn Toy - Space Phone
• 3B25.67 - Culvert Whistlers

Compound Waves

• 3B27.21 - Wave Addition Models

Wave Properties of Sound

• 3B30.01 - Ultrasonic Levitator
• 3B30.10 - Speed of Sound in Air
• 3B30.30 - Bell in a Vacuum
• 3B30.40 - Speaker and Candle Flame
• 3B30.45 - Trumpet and Bubbles
• 3B30.50 - Sound in Helium and CO2
• 3B30.52 - Speed of Sound in Water / Ultrasonic
• 3B30.61 - Speed of Sound in a Rod
• 3B30.65 - Music Box
• 3B30.70 - Soundboard

Phase and Group Velocity

• 3B33.20 - Group and Phase Velocity

Reflection and Refraction (Sound)

• 3B35.10 - Gas Lens
• 3B35.30 - Parabolic Reflector and Sound Source
• 3B35.37 - Plane Reflectors - Equal Angles
• 3B35.39 - Curved Reflectors - Whispering Gallery

Transfer of Energy in Waves

• 3B39.20 - Frequency of Sound Waves - Dominoes
• 3B39.30 - Big Ben - Coat Hanger on a String

Doppler Effect

• 3B40.10 - Doppler Effect - Buzzer and String
• 3B40.25 - Doppler Effect - Rotator App.
• 3B40.30 - Doppler Effect - Microwave Beats

Shock Waves

• 3B45.05 - Doppler Effect and Shock Waves - Overhead Projector Plates
• 3B45.13 - Shock Wave Fronts - Hydraulic Jump
• 3B45.30 - Solitons
• 3B45.35 - Shock Wave Fronts
• 3B45.50 - Shock Wave Fronts - Supersonic Jump
• 3B45.60 - Shock Wave Fronts - Supersonic Jet & Volcanoes
• 3B45.61 - Bull Whip and Towel
• 3B45.75 - Shock Wave Fronts - Cymbal and Flash Unit

Interference and Diffraction

• 3B50.20 - Ripple Tank
• 3B50.40 - Moiré Transparencies

Interference and Diffraction of Sound

• 3B55.10 - Interference of Sound Waves - Rotating Platform, LED
• 3B55.30 - Speaker and Baffle
• 3B55.32 - Interference of Speakers
• 3B55.40 - Interference - Quincke's Tube or Trombone
• 3B55.55 - Diffraction Around an Obstacle - Through A Fan

Beats

• 3B60.10 - Beats - Tuning Fork
• 3B60.13 - Beats - Organ Pipes
• 3B60.20 - Beats - Oscilloscope

Coupled Resonators

• 3B70.10 - Resonance in Solids Demo - Tuning Fork Resonance
• 3B70.30 - Resonance of Strings

The Ear

• 3C10.10 - Model of the Human Ear
• 3C10.15 - Ear Drum Model
• 3C10.20 - Binaural Hearing
• 3C10.21 - Stethoscope

Pitch

• 3C20.05 - Infrasound
• 3C20.10 - Range of Hearing for the Human Ear
• 3C20.15 - Galton's Whistle
• 3C20.16 - Ultrasonic Waves - Suspended Rods , Ultrasound
• 3C20.17 - Quartz Oscillators - Quartz Tuning Forks & Watches
• 3C20.20 - Zip Strips
• 3C20.21 - Grooves on a Record - Model
• 3C20.23 - Grooves on a Record - LP
• 3C20.25 - Musical Pop Bottles
• 3C20.30 - Siren Disk - Seebeck Siren
• 3C20.35 - Sirens
• 3C20.40 - Savart's Wheel - Musical Saws
• 3C20.43 - Coin in a Balloon
• 3C20.60 - Increasing Pitch - Euler's Disk, Magnets & Glass Bottles, LIGO Ring Down

Intensity and Attenuation

• 3C30.20 - Decibels Meter & Speaker

Architectural Acoustics

• 3C40.10 - Concert Hall Acoustics

Wave Analysis and Synthesis

• 3C50.10 - Fourier Synthesis of Waves - Pasco
• 3C50.40 - Resonance - Electromagnetically Driven Strings
• 3C50.55 - Noise Generator and Filters
• 3C50.60 - 60 Cycle Hum - Electromagnetic Pickup
• 3C50.65 - Twisted Pair
• 3C50.75 - Noise and Measurements
• 3C50.80 - Spectrum Analysis

Music Perception and the Voice

• 3C55.25 - Missing Fundamental
• 3C55.30 - Heterodyne Wave
• 3C55.31 - Combination Tones
• 3C55.40 - Chords
• 3C55.51 - Musical Scales
• 3C55.65 - Tone Quality and Evaluating Musical Instruments
• 3C55.72 - Tuning Forks - Tone Quality
• 3C55.80 - Vocal Formants
• 3C55.84 - Polyphonic Overtone Singing
• 3C55.85 - Acoustical Filters - Stewart Filters
• 3C55.88 - Sound Sink-Sound Sucker
• 3C55.90 - Science of Sound - Tapes and Records

Resonance in Strings

• 3D20.10 - Sonometer
• 3D20.20 - Sonometer on Oscilloscope
• 3D20.60 - Rubber Band Harp

Stringed Instruments

• 3D22.10 - Violin
• 3D22.25 - Cup Telephone
• 3D22.30 - Guitar
• 3D22.32 - Guitar - Fretted String Instruments
• 3D22.40 - Piano

Resonance Cavities

• 3D30.10 - Resonance Tubes - Water Column
• 3D30.14 - Open Tube Resonance - Ambient Noise Resonators
• 3D30.15 - Standing Waves in a Tube
• 3D30.16 - Resonance Tubes - Sliding Piston
• 3D30.17 - Box and Bottle Modes
• 3D30.21 - Resonance Horns - Conical Pipes
• 3D30.32 - Cylindrical Pipes
• 3D30.35 - Freq Tube
• 3D30.40 - Helmholtz Resonator
• 3D30.50 - Ruben's Tube
• 3D30.60 - Kundt's Tube
• 3D30.70 - Rijke Tube - Hoot Tubes with Mounted Metal Screens
• 3D30.71 - Hoot Tube
• 3D30.75 - Knipp Tube
• 3D30.77 - Hot Chocolate Effect

Air Column Instruments

• 3D32.10 - Flute
• 3D32.14 - Clarinet - Saxophone - Recorder - Tinwhistle
• 3D32.15 - Variable Pitch Whistles - Stadium Horn - Train Whistles - Relaxation Oscillators
• 3D32.18 - Soda Straw Oboe
• 3D32.22 - Edge Tone Generator
• 3D32.25 - Organ Pipes and Whistles
• 3D32.30 - Harmonica or Melodica
• 3D32.35 - Resonance in Cavities - Horn
• 3D32.40 - Trumpet / Cornet
• 3D32.41 - Baritone / Euphonium
• 3D32.43 - Trombone
• 3D32.45 - PVC Instruments - Palm Pipes and Boomwhackers

Resonance in Plates, Bars, Solids

• 3D40.10 - Justemp Bars - Xylophone
• 3D40.14 - Jaw Harp, Mouth Harp, or Jew's Harp
• 3D40.15 - Musical Sticks
• 3D40.18 - Musical Ruler - Musical Strips
• 3D40.19 - Thumb Piano
• 3D40.19-2 - Musical Saw
• 3D40.20 - Singing Rods
• 3D40.23 - Waterphone
• 3D40.25 - Regenerative Feedback
• 3D40.30 - Chladni Plates
• 3D40.34 - Gongs - Cymbals
• 3D40.40 - Drums
• 3D40.45 - Dancing Soap Bubbles
• 3D40.50 - Musical Goblets or Bowl
• 3D40.51 - Spouting Bowl
• 3D40.55 - Shattering Beaker
• 3D40.56 - Low Frequency Glass Breaker
• 3D40.58 - Bells - Cow Bells
• 3D40.60 - Chimes/Triangle
• 3D40.65 - Bull-Roarer

Tuning Forks

• 3D46.15 - Tuning Forks - Various
• 3D46.16 - Tuning Forks on Oscilloscope
• 3D46.30 - Tuning Fork Motion
• 3D46.90 - Electronically Driven Tuning Fork

Electronic Instruments

• 3D50.10 - Keyboards - Piano and Organ
• 3D50.15 - Synthesizer
• 3D50.20 - Online Tone Generators
• 3D50.30 - Theremin
• 3D50.50 / 3E80.70 - Beamz Player

Loudspeakers

• 3E20.10 - Loudspeakers
• 3E20.15 - Loudspeaker Resonance
• 3E20.20 - Singing Tesla Coil - Plasma Speaker
• 3E20.25 - Tooth Toons - Human Loudspeaker
• 3E20.30 - The Sound Color Organ
• 3E20.35 - High - Mid - Low Pass Filter/Crossover
• 3E20.50 - Noise Cancellation

Microphones

• 3E30.10 - Microphone Construction
• 3E30.20 - Reciprocity - Speaker as a Microphone / Microphone as a Speaker

Amplifiers

• 3E40.00 - Amplifier
• 3E50.00 - Phonograph - Turntable

Recorders

• 3E60.00 - Tape deck
• 3E70.00 - CD Boom Box

Digital Systems

• 3E80.05 - CD Reading System
• 3E80.10 - Digital Reproduction CD with Holes
• 3E80.50 - Digital Compression
• 3E80.70 / 3D50.30 - Beamz Player
• 9A20.20 - CD Player