Sound is fast, but not too fast for you to measure its speed. You and a friend can find out how fast sound travels through air with just a few things you probably have at your house and some math you already know. Don’t worry—a calculator will do the hard part for you. The only thing that could be a little tricky is finding a good location. You’ll need an open area outside a large building with a mostly flat wall. A field next to a school or a parking lot next to an office or hospital usually fits the bill. Ask an adult to OK your experiment location.
A long tape measure (in feet or meters)
Tape, chalk, or stick to mark the ground
Stopwatch or a stopwatch app on a smartphone
Thermometer or a weather app on a smartphone
Calculator or a calculator app on a smartphone
Pencil and paper
A friend or other partner
Continue reading your story on the app
Continue reading your story in the magazine
THE MUSIC OF THE SPHERES
Hunched over your paper, you try to concentrate. This is the worst kind of assignment.
LEARNING TO HEAR
With cochlear implants
Q Where do personal preferences come from? For example, I like hard rock music. Why am I that social outcast who runs screaming into the bathroom at school dances when everyone else is singing along? —Kate, age 13, Ohio
Trevor Cox – Acoustic engineer and Stonehenge researcher
Trevor Cox is a professor of acoustic engineering at the University of Salford in the United Kingdom. He engineers systems to make sound better. And he studies how the structures we build affect the sounds we make inside them.
How Fast Is Sound?
Adolphe Sax – How To Invent An Instrument
The story of the saxophone
The Sounds Of Star Wars
This is the sound design activity you’re looking for.
Courtney Craven – Gamer and disability activist
Craven does presentations worldwide to assist game developers, teachers, writers, and others in making text and images available to people with any disability.
Want to communicate better with kids with hearing loss? Try these tips.
Can You Please Lower Your Voice?
The experience of auditory sensitivity