Question

1. if you start with a note with a frequency of 110 hz, what frequencies are one octave higher and one octave lower than this frequency?

Explanation:

Step1: Recall octave - frequency relationship

To find one octave higher, multiply by 2.
$110\times2 = 220$ Hz

Step2: Recall octave - frequency relationship

To find one octave lower, divide by 2.
$\frac{110}{2}=55$ Hz

Answer:

One octave higher: 220 Hz; One octave lower: 55 Hz