Suchergebnis für: ** Zeige Treffer 1 - 10 von 13

Anderer Ressourcentyp

Siemens Stiftung

Communication (link list)

Link list:Many interesting links regarding the topic "Communication".Information and ideas:Suitable as a source for internet inquiry for the teacher and students.

Anderer Ressourcentyp

Siemens Stiftung

Experiments on bundling of sound

Experimentation instructions:Experiment cards for students on bundling of sound, for example, megaphone or experiment with tube and funnel.Instructions on how to conduct simple sound bundling experiments (ear trumpet, megaphone). In this way, the students learn about the phenomena through playing. By the way: Sound can be bundled or funnelled. In the hearing process, this function is carried out by pinna and ear canal.Information and ideas:• Observe the safety information in the instructions as well as the applicable safety guidelines for your school and discuss it with your students.• The experiments on the bundling of sound show the students that sound is often funnelled or bundled when it is transmitted or perceived.• The experiments can be done either in groups or as station training.Relevant for teaching:Acoustic phenomenaSound/acoustics: parametersVibrations and waves

Anderer Ressourcentyp

Siemens Stiftung

Sound emission at the loudspeaker

Video (00:11 minutes):The visibly vibrating diaphragm in the loudspeaker obviously transmits its movement onto the air as sound waves.The principle of sound production and propagation as sound wave in the air can be recognized clearly with the example of the diaphragm of a loudspeaker. By the way, only the lowest-pitched tones are visible. With medium and high-pitched tones the movements of the diaphragm are so fast that they are invisible. Information and ideas:Suitable for demonstration purposes but also good for self-study on the part of the students. Idea: show the film without sound to begin with. The students should then guess what sort of noise/sound it might be.Relevant for teaching:Acoustic phenomenaSound/acoustics: parametersCommunication and understandingVibrations and waves

Anderer Ressourcentyp

Siemens Stiftung

Sound propagation

Experimentation instructions:Experiment cards for students on sound propagation, for example, make a string telephone or propagation of sound waves in a glass of water.Sound needs a medium for propagation. Information and ideas:• Observe the safety information in the instructions as well as the applicable safety guidelines for your school and discuss it with your students.• The experiments on sound propagation show the students that sound needs a medium to propagate. It becomes clear which materials conduct sound better and which materials slow the propagation down.• The experiments can be done either in groups or as station training.Relevant for teaching:Acoustic phenomenaSound/acoustics: parametersVibrations and waves

Anderer Ressourcentyp

Siemens Stiftung

Water as wave model

Video (00:07 minutes, without sound):A stone is thrown into calm water, ripples are formed.The vibrations emitted by a source of sound can be compared with the ripples or waves created when a stone is thrown into calm water.It is, however, directly comparable only as far as the concentric shape of propagation is concerned. Looked at in detail, the vibrations are in fact very different. Information and ideas:Students can do the experiment themselves on an excursion out of school. Relevant for teaching:Acoustic phenomenaSound/acoustics: parametersCommunication and understandingVibrations and waves

Anderer Ressourcentyp

Siemens Stiftung

Production of sound

Experimentation instructions:Experiment cards for students on sound production, for example, cup or nail guitar.Sound can be produced by a variety of activities including plucking, striking or blowing.A sound source only becomes a transmitter when it produces and sends sound waves.Information and ideas:• Observe the safety information in the instructions as well as the applicable safety guidelines for your school and discuss it with your students.• The experiments on sound production show the students that sound can be produced by a variety of activities.• The experiments can be done either in groups or as station training.Relevant for teaching:Acoustic phenomenaSound/acoustics: parametersVibrations and waves

Lernalter

6-12

Schlüsselwörter

Sound

Sprachen

Englisch

Anderer Ressourcentyp

Siemens Stiftung

Hearing (link list)

Link list:Many interesting links regarding the topic "Hearing".Information and ideas:Suitable as a source for internet inquiry for the teacher and students.

Anderer Ressourcentyp

Siemens Stiftung

Experiments on hearing

Experimentation instructions:Experiments on hearing which every student can easily do, for example, directional hearing with a tube.The experiment cards provide instructions for the following experiments:• Cover your ears• Direction hearing with a hose• Replicate the eardrum with paper and grains of sand• Ringing of bellsThe experiments can be done independently by the students, for example as station training/learning circle either alone or in small groups.The results observed should be discussed together.Information and ideas:Observe the safety information in the instructions as well as the applicable safety guidelines for your school and discuss it with your students.Relevant for teaching:Structure and function of a sensory organReception of stimuli and transmission of informationCommunicationAcoustic phenomenaVibrations and waves

Primärmaterial/Quelle

Siemens Stiftung

Ultrasound localization bat

Website:
Visualization of the ultrasound localization system in bats.

Bats orientate themselves not with their eyes, but with their ears using ultrasound calls. They have an orientation system that is similar to radar. This system is so sensitive that it can even pick up fine wires only 0.1 mm in diameter. In flight, they emit localization calls through their mouths, in some species through their noses, and their large ears hear the echoes.

Information and ideas:
Explorative learning is supported.

Relevant for teaching:
Reception of impulses and information processing
Our senses open up our surroundings
Sound/acoustics: audible range, hearing limit
Communication, understanding

Anderer Ressourcentyp

Siemens Stiftung

Sound synthesis from Double Muffled Dolphin

Web resource:This music automat in the form of an applet enables everyone to produce individual ambient sounds.The automat is playing an array of sound (like a looping tape). The array is updated with data from the various modules whenever new data is available. To reflect changes on potmeters and buttons the sound is constantly recalculated. The newly calculated sound is then copied to the sound array. To prevent clicks-pops and odd things to happen "recording" (copying) is synchronized with the "play-head's" position on the "tape".Tips for running the Applet: 1. Make sure that Java Runtime is installed and that the browser security setting permits the playing of JAVA Applets. 2. Greyed tabs mean that these have to be opened and settings made. 3. It is best to start with "DrumSynth" and click on "Activate" in "Module Control".Information and ideas:This tool involves more than just playing. It makes it possible to look at the subjects of sound production and sound design in a serious and systematic way.Relevant for teaching:MusicSenses discover the environmentGames to practise using the sensesSound production and analysis