Question

the type of wave that eli creates in the spring toy is called a longitudinal wave.unlike a transverse wave, a longitudinal wave travels in a direction that is parallel to the direction the particles in the medium move. when eli moves his hand back and forth, the coils in the spring toy squeeze together and pull apart horizontally. a wave of compressing and stretching then travels along the horizontal length of the spring toy.complete the sentences.the longitudinal wave that eli creates in the spring toy travels $\boldsymbol{\text{________}}$ and the particles in the spring move $\boldsymbol{\text{________}}$. this means that the wave and the particles of matter move in $\boldsymbol{\text{________}}$ directions.

Explanation:

The text states that Eli's hand moves back and forth horizontally, creating a longitudinal wave that travels along the spring's horizontal length. It also specifies that longitudinal waves travel parallel to the direction of the medium's particle movement.

Answer:

The longitudinal wave that Eli creates in the spring toy travels horizontally and the particles in the spring move back and forth horizontally. This means that the wave and the particles of matter move in parallel directions.