20 points and brainiest describe the wave motion and mechanical wave movement of a seismic p wave

P wave. P-wave. a longitudinal wave that advances by alternate compression and expansion in a solid or fluid medium, like a sound wave.

A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.