Sound crossword puzzle

This printable crossword puzzle on the topic of Physics has 10 clues. Answers range from 5 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

All sound waves require a..
Sound travels fastest through a..
What are the 3 parts of the ear?
The cooler the medium the ____ speed
The hotter the medium the ______ speed
Pitch is determined by what of a sound wave
What is the change in frequency or sound as the source and the observer move closer
What do decibels do
How many decibels are in a whisper
120 decibels or higher is known to be..