Question

which best describes a wave?
a collision of particles
a disturbance that carries energy
a movement of fluids
a group of electrically charged molecules

Explanation:

In physics, a wave is defined as a disturbance that travels through a medium (or in some cases, a vacuum) and carries energy. It is not a collision of particles, movement of fluids only, or a group of electrically - charged molecules.

Answer:

B. a disturbance that carries energy