Question

· sound

· parallel
· mechanical
· not a vacuum
· needs a medium
· compressions and rarefaction

What type of wave is being described?
A) compaction
B) electromagnetic
C) longitudinal
D) transverse

Answer 1

Answer: C) longitudinal

Explanation: A longitudinal study is a research design that involves repeated observations of the same variables over short or long periods of time. It is often a type of observational study, although they can also be structured as longitudinal randomized experiments.

Answer 2

Answer: The answer is a longitudinal wave.

Explanation: Since this is a sound wave, a medium is needed in order for sound to conduct. A longitudinal wave has a direction of propagation parallel to the direction of the oscillation.