• Long rubber rope

Various modes of standing waves are demonstrated using a long rubber rope attached to the wall.

• Slinky supported by strings

A slinky is used to demonstrate both longitudinal and transverse waves.

• Two-meter stick
• Tuning forks

Tranverse standing waves on a beam are demonstrated by using various lengths of a two-meter stick fixed at one end. Tuning forks of different lengths are also shown to vibrate with transverse standing waves which then produce longitudinal sound waves in air.

• Rubber rope
• Violin demonstrator

Various modes of standing waves on vibrating strings (fixed at either end) are demonstrated using a rubber rope and also a violin demonstrator. The violin demonstrator is used to show the dependency of pitch (frequency) on the length, mass, and tension in the string.

• Two-meter stick
• Various tuning forks

A two-meter stick is used to demonstrate the vibrations of a tuning fork. Higher harmonics are demonstrated for a given tuning fork and various tuning forks of different lengths are shown to vibrate with different frequencies.

• Open resonance tubes
• Closed resonance tubes
• Various tuning forks

Sound resonance is demonstrated in both open and closed pipes. Open pipes of different lengths are shown to resonate at different frequencies. Closed pipe resonant frequencies are demonstrated by inserting an open pipe into a column of water to change its effective length.

• Aluminum rod
• Rosin

Longitunal vibrations in an aluminum rod are produced by striking the rod on the cement floor and also by stroking the rod with rosin coated fingers. In each case the vibrations produce audible sound.

• Circular saw blade
• Support rod
• Sprinklings of various materials
• Clamp

A circular saw blade is mounted horizontally on a rod and set into vibration by stroking the blade with a violin bow. These patterns are observed with the aid of small particles sprinkled on the surface. The patterns are shown to depend on the way the violin bow strokes the blade and are modified by attaching a clamp which forces a node at a particular location.

• Large screen oscilloscope
• Microphone and sound amplifier
• Slinky supported by strings
• Various tuning forks

An oscilloscope is used to demonstrate the relationship of frequency to ptich and the relationshop of amplitude to loudness for sound waves generated by various tuning forks.

• Large screen oscilloscope
• Microphone and sound amplifier
• Various tuning forks
• Two-meter stick

An oscilloscope and a speaker system are used to demonstrate the quality of sound from a single tuning fork vibrating with different harmonics and also sound generated by two closely spaced tuning forks vibrating simultaneously.

• Large screen oscilloscope
• Microphone and sound amplifier
• Audio signal generator
• Tuning fork
• Four-pronged digging fork

An oscilloscope is used to demonstrate the characteristics of an audio generator. The signal from the audio generator is then combined with the sound from a tuning fork to demonstrate the phenomenon of beats. Finally, the sound from the vibrating prongs of a digging fork is demonstrated.

• Various whirly tubes
• Alp horn

By spinning whirly tubes of various lengths, and also by blowing into a 15 ft alp horn, several harmonics are demonstrated.