Which is a longitudinal wave that requires a medium to move?

Examples of longitudinal waves that require a medium in order to move include a

1. compression wave  moving along a spring produced by compressing and then releasing a few coils of a spring)

2. Sound wave.- sound wave travels in the form of a longitudinal wave and it requires a material medium for its propagation

The origin of sound is always a kind  of vibrating body. Human voice originates from the vibrations in the vocal chords,  and the sound of musical instruments is due to vibration of the air column.

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas