08 Musical Instruments and wave speed

MUSICAL INSTRUMENTS AND WAVE SPEED

Describe stretched strings?

• Stretched strings are transverse waves

• The string has a mass and a length

• The speed at which the waves travel down the string depend on the tension and mass per unit length

How to calculate mass per unit length?

We divide the mass by the length of the string

Mass per unit Length is given the symbol μ

μ = m/L

What is the formula to calculate wave speed on a string?

Describe wind instruments?

• Wind instruments work by creating a standing wave inside the cylinder of the instruments

• They are called resonators

Describe the waves in a pipe which has one closed end

A pipe has one closed end and one open end, the closed end has a node and the open end has an antinode

Describe the waves in a pipe with two open ends?

A pipe that has 2 open ends, it means that both ends will have an antinode