Understanding Sound Waves in Guitar Strings

What is a key difference between sound waves and electromagnetic waves?

• Electromagnetic waves are mechanical.

• Sound waves require a medium to travel.

• Electromagnetic waves require a medium to travel.

• Sound waves can travel through a vacuum.

What happens when the outgoing and returning ripples on a guitar string overlap correctly?

• They cancel each other out.

• They produce a standing wave.

• They increase the wave speed.

• They create a traveling wave.

Why do thicker guitar strings tend to produce lower pitch notes?

• They are more tightly wound.

• They are longer in length.

• They have a lower wave speed.

• They have a higher wave speed.

What is the unit of linear density typically expressed in?

• Mass per unit volume

• Mass per unit length

• Length per unit mass

• Volume per unit mass

If a guitar string has a tension of 80 Newtons, a mass of 0.02 kg, and a length of 2 m, what is the speed of its sound wave?

• 10.44 m/s

• 9.44 m/s

• 8.44 m/s

• 11.44 m/s