A sound wave travels vertically downwards from a speaker on the ceiling to a microphone on the floor. Let point $P\,$ be at the ceiling speaker and point $Q\,$ be at the floor microphone directly below $P$ .

Which of the following represents the movement of the air molecules, caused by the sound wave, in the region between $P\,$ and $Q$ ?

$↔\leftrightarrow$ (horizontal back-and-forth movement)

$↕\updownarrow$ (vertical back-and-forth movement)

$↻\circlearrowright$ (circular movement)

A line with a single arrowhead pointing downwards from $P$ to $Q$

Which of the following represents the movement of the air molecules, caused by the sound wave, in the region between $P\,$ and $Q$ ?

$↔\leftrightarrow$ (horizontal back-and-forth movement)

$↕\updownarrow$ (vertical back-and-forth movement)

$↻\circlearrowright$ (circular movement)

A line with a single arrowhead pointing downwards from $P$ to $Q$

Sound

Question 45

Markscheme

Sound

Question 45

Markscheme

Sound

Question 45

Sound Questions

Sound

Question 45

Sound Questions