Question

the yellow string marks one coil in this spring toy. watch how far the yellow string is displaced to the right or to the left from its starting, or rest, position. that displacement is the waves amplitude.

the amplitude of a longitudinal wave is related to how close together the particles are in a compression. complete the sentences to explain why.

when a wave with amplitude moves through the spring toy, each coil is displaced farther to the right or left. as a result, the coils in a compression are squeezed together .

Explanation:

Amplitude in a longitudinal wave (like the spring toy) refers to the maximum displacement of particles (coils) from their rest position. A larger amplitude means each coil moves farther from its starting point. When coils move farther toward each other in a compression, they end up squeezed more tightly together.

Answer:

When a wave with large amplitude moves through the spring toy, each coil is displaced farther to the right or left. As a result, the coils in a compression are squeezed together more tightly/closer.