Question

Levi observed properties of three different waves and recorded observations about each one in his chart.



Which statement is best supported by the table?

A. Wave W and Y are light waves.
Wave X is a sound wave.
B. Wave W is a light wave.
Waves X and Y are sound waves.
C. Waves Y is a sound wave.
Waves X and W are light waves.
D. Wave W is a sound wave.
Waves X and Y are light waves.

Answer 1

I don't see the chart—can you paste the observations or upload the table/image Levi made?

If you want to decide on your own, here are quick rules you can use to tell light vs. sound from observations:
- Can the wave travel through a vacuum (space)? If yes → light; if no → sound (sound needs a material medium).
- Is the wave longitudinal (compressions and rarefactions) or transverse (perpendicular oscillation/polarization)? Longitudinal → sound; transverse or shows polarization → light.
- Speed: anything near 3×10^8 m/s → light; ~300–350 m/s in air → sound.
- Polarization or behavior through polarizing filters → light only.
- If the observation mentions pitch/loudness → sound; color/brightness → light.

Give the chart and I’ll pick the best answer.