Question

wave observations
w its motion is perpendicular to wave motion.
x its particles move up and down.
y its particles only move small amounts.
z its motion is parallel to wave motion.
which statement is best supported by the table?
waves w and y are transverse waves, wave x could be a longitudinal or transverse wave, and wave z is a longitudinal wave.
waves w and y are longitudinal waves, wave x could be a longitudinal or transverse wave, and wave z is a transverse wave.
waves w and x are longitudinal waves, wave y could be a longitudinal or transverse wave, and wave z is a transverse wave.
waves w and x are transverse waves, wave y could be a longitudinal or transverse wave, and wave z is a longitudinal wave.

Explanation:

1. Recall the definitions: Transverse waves have particle motion perpendicular to wave propagation; longitudinal waves have particle motion parallel to wave propagation.
2. Analyze Wave W: Motion is perpendicular to wave motion → transverse.
3. Analyze Wave X: Particles move up and down (perpendicular to wave direction, typical of transverse) → transverse.
4. Analyze Wave Y: Particles move small amounts – this is consistent with both transverse (oscillating perpendicular) or longitudinal (oscillating parallel, small displacements) → could be either.
5. Analyze Wave Z: Motion is parallel to wave motion → longitudinal.
6. Match with options: The last option states Waves W and X are transverse, Wave Y could be either, Wave Z is longitudinal – this matches the analysis.

Answer:

D. Waves W and X are transverse waves, Wave Y could be a longitudinal or transverse wave, and Wave Z is a longitudinal wave.