What 4 ways can sound waves bend and move? (4) Refraction:
Reflection:
Diffraction:
Absorption:

reflection: sound is constantly reflected off different many surface

refraction: when a wave passes from one material to an angle, it usually changes speed causing the waves front to bend

diffraction: the bending of waves around small obstacles and spreading out of waves beyond small openings

Absorption: refer to the process by which a material, structure, or objects takes in sound energy when sound waves are encountered as opposed to reflecting the energy

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the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.