Answer the following question giving explanations wherever necessary.
Do ultrasounds travel faster than those we can hear?

Explanation

To answer the question "Do ultrasounds travel faster than those we can hear?" let's break it down step by step.

### Step 1: Understand the Types of Sound
There are three main categories of sound based on frequency:
- **Infrasonic Sound**: Frequencies below 20 Hz (not audible to humans).
- **Audible Sound**: Frequencies between 20 Hz and 20,000 Hz (the range we can hear).
- **Ultrasonic Sound**: Frequencies above 20,000 Hz (not audible to humans).

...