Question

question 3
what happens to particles in a surface wave (such as a water wave)?
they move perpendicular to the direction of wave motion.
they move perpendicular and parallel to the direction of wave motion.
they move parallel to the direction of wave motion.
they arent displaced as the wave moves forward.

Explanation:

Surface waves, like water waves, are a combination of transverse and longitudinal wave characteristics. Transverse waves have particle motion perpendicular to wave direction, and longitudinal waves have particle motion parallel to wave direction. Surface - wave particles thus move in both perpendicular and parallel directions.

Answer:

They move perpendicular and parallel to the direction of wave motion.