18
QuizMultiple Choice

Introduction to Waves

Question 18 • POP Physics 26/27

What best describes a possible transfer of energy?

Answer
A
A mechanical wave transfers energy through matter.
B
A longitudinal wave transfers energy perpendicular to wave motion.
C
A transverse wave transfers energy parallel to wave motion.
D
A sound wave does not need a medium to transfer energy through.

Explanation

A mechanical wave transfers energy through a medium, which is matter such as air, water, or a solid. Longitudinal and transverse describe how the medium’s particles move relative to the wave’s direction, and sound needs a medium to travel.

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