Sound diffraction © Siemens Stiftung 2018 CC BY-SA 4.0 international

Sound diffraction

Image

Graphic:
Diffraction is a typical feature of sound waves when they meet an obstacle.

English, Spanish (CREA), German
Image (148.7 kByte)
2018-04-22
The diffraction of sound waves is a physical mechanism which ensures the entry of sound waves into acoustic shadows.
That means the sound is audible in areas which are cut off from the direct sound incidence, such as behind obstacles.

Information and ideas:
Diffraction of light can be proved when a parallel ray beam of monochrome light is directed at a narrow opening. A screen set up behind the opening gives us a diffraction figure (bright and dark stripes that lose intensity the further outwards they are). With sound, a direct reference to the students' everyday world is even easier: Why can you hear noise from a street in front of a building even when you are behind the building?
Further information about this graphic is provided as an information sheet on the media portal of the Siemens Stiftung.

Relevant for teaching:
Sound/acoustics: parameters
Vibrations and waves
There are no other media directly related to this file.
Illustration
Physics
Grade 7 to 9; Grade 10 to 13
Middle/high school; Vocational training
Chart; Optics; Sound; Wave (physics); Diffraction; Graphics; Sound (basic phenomenon); Sound propagation; Sound wave
Siemens Stiftung Media Portal
MediaHouse GmbH
© Siemens Stiftung 2018
Stay up-to-date!

About four times a year, we inform you about new media on this portal as well as current studies and events related to OER and STEM.

Media Portal newsletter – register now

About four times a year, we inform you about new media on this portal as well as current studies and events related to OER and STEM.

*Required fields


Language

Liebe Nutzerin, lieber Nutzer,
El Portal de Medios – das spanische Medienportal – ist umgezogen und heißt nun CREA.
Auf CREA finden Sie weiterhin hochwertige Medien für den MINT-Unterricht und vieles mehr.

Dear User,
El Portal de Medios - the Spanish Media Portal - has moved and is now called CREA.
On CREA, you will continue to find high-quality media for STEM education and much more.

Estimado usuario, estimada usuaria,
El Portal de Medios – en español – ha sido trasladado y ahora se llama CREA.
En CREA seguirá encontrando medios de alta calidad para la enseñanza de STEM, y mucho más.

Zu CREA wechseln / Switch to CREA / Cambiar a CREA
CREA - El Portal de Medios para la Enseñanza STEM

Hierbleiben / Stay here / Quédate aquí:
Fenster schließen / Close window / Cerrar ventana