Sound of a certain pitch

First letter "t"

Second letter "o"

Third letter "n"

The last beech letter "n"

Answer to the question "Sound of a certain pitch", 3 letters:
tone

Alternative crossword questions for the word tone

Trusted ... of conversation

In addition to the Cathedral of Christ the Savior, it has all 34 stations on the Petersburg-Moscow line.

Physical characteristic of pitch

The shade of both the sound of speech, and the colors of the artistic canvas

Definition of the word tone in dictionaries

Explanatory dictionary of the Russian language. D.N. Ushakov Meaning of the word in the dictionary Explanatory dictionary of the Russian language. D.N. Ushakov
tone, pl. tones-tones, tones, m (Greek tonos). the sound generated by the periodic oscillation of the air, the musical sound, in contrast to the noise (physical, music). A chord is a simultaneous combination of three, four or five different tones arranged in a well-known ...

Wikipedia Definition of a word in the Wikipedia dictionary
"Tone" is an ambiguous term.

Explanatory Dictionary of the Living Great Russian Language, Dal Vladimir Definition of the word in the dictionary Explanatory Dictionary of the Living Great Russian Language, Vladimir Dal
m. fr. muses. every sound, ringing, hum, voice; and every change in sound is an increase or decrease in tone. Get in tone, hit the given note. muses. sound quality or language. Good and bad violin tone. This piano has a full, thick and soft tone. The tone of the strings ...

Examples of the use of the word tone in literature.

Replacing the wartime differences from the red garus with gold braids and adopting the arrogant from the Germans tone victors, the former modest lieutenants and captains looked like colonels, colonels - generals, and the latter seemed impregnable marshals.

Rather, Abdallah Hassan switched to a shrill tone, but Serega was quiet, but flogged all sorts of nonsense.

The last paragraph. tone narration, etc.

Four of my guys were killed during the boarding attack, '' he remarked in an insinuatingly quiet tone.

But, having finished the etiquette part, sharp tone said: - You gave me Abe, but all the time you call him and give various instructions.

\ For physics teacher

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Information conference on the topic: "Living in the world of sounds is happiness."

The lesson was sent by: Artyukhova Lyudmila Ivanovna, physics teacher, secondary school No. 56, Petrov Val, Kamyshinsky municipal district, Volgograd region [email protected]

Goals: consolidation of students' knowledge on the topic "Sound phenomena"; instill self-education skills, develop the ability to speak in public; develop creative technical skills.

Equipment: oscilloscope, microphone, tuning forks, businkana thread, musical instruments, metal ruler, beaker, tables, wall newspapers, homemade devices (flute, sv

glove, bottlephone), balloons, sand, bell, student presentations, computer, multimedia projector.

Students are divided into groups: biologists, historians and writers, music lovers, architects, ecologists and doctors.

Organizing time

Performing a small piece of music on a violin, recording the trill of a bird, the noise of a running engine.

Teacher:

What have we heard? That's right, the sounds made by the bodies.

By chance I came across a card. It has lines like this:

I am asking you for help.

I am a hearing-impaired person.

Living in the world of sounds is happiness.

I have no such happiness.

Natural sounds - I don't know.

There is no way to speak ...

You and I have the opportunity to hear and speak.

People have long guessed that sounds can be born, move or die. Not having much knowledge, they made wonderful instruments, built wonderful theaters and cathedrals. But to

When the task arose to build a supersonic aircraft or create a high-quality recording, there is nowhere without science.

What is the name of the science of the nature of sound? That's right, acoustics. But there are physiological, architectural, technical acoustics. How do they differ? What do they have in common?

Today you are not just students, you are specialists studying sound in integration with other academic subjects.

The signs on your tables indicate that you are seriously preparing for the information conference. What is the purpose of the session?

(Write the topic and purpose of the session on the chalkboard.)

Knowledge update

The conference must be opened using the key:

1. Fluctuations of the elastic medium perceived by the human ear ( 1 letter).

2. The sound of one specific frequency ( 3 letter).

3. A branch of physics that studies sound waves ( 1 letter).

4. Low-frequency vibrations that are not perceived by the human ear ( 1 letter).

5. Changes in nature ( 1 letter).

I. The word is given to a group of biologists.

Messages (presentation):

1. Sources of sound in humans.

2. The structure of the human hearing aid.

4. Bioacoustics of fish.

Conclusions:

II. Historians and writers report on the completion of the assignment.

Messages:

1. Talking statues.

2. Bells in the desert.

3. What is an echo?

4. Why does the wind howl?

Conclusions:

A piece of music is played.

III. Speech by the section of music lovers.

1 disciple: Dear friends! Who among us doesn't like music? Opera, symphonic, pop music is an integral part of the spiritual culture of mankind. Music can express feelings

and the thoughts of people of different nationalities, its language is understandable to everyone.

2 disciple: Music is great! But what has physics to do with it?

1 disciple: Music is sounds. The sound received by the tuning fork is the sound of one frequency. It is called a musical tone. In the auditory sense, sounds differ in pitch, volume, timbre

These physiological characteristics depend on frequency, amplitude and mode of vibration. Look, here's an oscilloscope and a microphone. We excite the tuning fork. We see that the oscillations of the sinusoid

far, one frequency and amplitude. Let's hit harder. What is the amplitude of the fluctuations? What is the volume of the sound? Let's try to pronounce the same word. Whether the shape is the same

Output:

1 student: We hear sounds from 16 to 20,000 Hz. The sound with a frequency of 16 Hz is the lowest that a person hears. The organ gives such sounds. With a grand piano, you can get sounds from 27 to 4096 Hz, violo

Nchel from 65 to 1500 Hz, drum from 50 to 5000 Hz. Human voices are divided by frequency range as follows:

male - bass, baritone, tenor; female - contralto, mezzo - soprano, coloratura soprano. The lowest bass sounds have a frequency of 60-350 Hz. Singer Kasper Fesper produced sounds frequently

2 disciple: Hear what a seashell sounds like. Why? How to overhear what is being said in the next room? Why does a phonendoscope have a box? Why do we involuntarily open our mouths when pr

listening to distant noise? What do all these tasks have in common? We are observing the phenomenon of acoustic resonance. What it is?

Here are 2 tuning forks of the same frequency. Let's excite one of them, and then touch our hand. He fell silent. Let's repeat the experience. Why do we hear the sound of another tuning fork? Oscillations of the first tuning fork

the difference in air pressure, which led to the oscillatory movement of the branches of the second tuning fork. Having understood what resonance is, one can explain why the cameron, guitar, balalaika, violin need

resonator boxes are available. They contain air, which is an oscillatory system. The dimensions of the boxes are selected in such a way that the air column resonates to the vibrations of the branches

her tuning forks, strings. In this case, the sounds will be amplified. The phenomenon of resonance is used in all musical instruments. Organ pipes, wind instrument pipes, violin bodies, g

Itar, possessing a whole set of natural frequencies, resonate with the tones and overtones of the primary sound sources, amplify their radiation, giving the sounds strength and timbre.

3 student: Here's a guitar. It has only 6 strings. But how many sounds can you get and why?

(Demonstration of homemade musical instruments and an explanation of how they work.)

IV. The word is provided to representatives of architecture:

Our group needs to find out what properties of sound waves are used and taken into account in the construction of temples, concert halls and living quarters.

1 student: The duties of the architect include not only creating the external appearance of the building, but also thinking over the internal planning. Architects of past centuries planned the halls for obest

military meetings by trial and error. The ancient Greeks and Romans invented the amphitheater. Already in those days they knew acoustic secrets that amaze us now: on the stage, you can break

a piece of paper and this faint sound will be clearly audible at the very top of the amphitheater, tens of meters from the stage. Wonderful acoustic effects were created in ancient temples: you can

then speak in one corner of the temple, and in the opposite, the whisper is perfectly discernible. During the construction of open amphitheaters and closed temple structures, reflection was used, pr

breaking and focusing sound waves. There have been failures. As soon as the dimensions of the well-planned building were changed, at least a little, and the new hall had poor acoustics. Theo became necessary

Retical studies. Architectural acoustics emerged. Its founder was the American physicist Valek Sabin.

In an enclosed space, sound can be reflected. This leads to reverberation - an increase in the duration of sounds. In this case, the speech will be illegible. Reverberation time depends on the material

fishing to cover the ceiling, walls, chairs, from the shape and size of the hall. The absorption coefficient of all materials depends on the frequency of sound. Wood, plaster absorb 3% of the incident energy.

wuk. Stronger absorb sound fabrics. One person's clothing absorbs as much sound energy as 20 square meters of plaster. The velvet-covered boxes are a thing of the past. Behold

Light, fire-resistant, porous materials are often used.

An experience: speak into the microphone words.Put cotton wool on the way. It can be seen that the amplitude of the oscillations has become smaller. We also use the absorption of sounds by porous bodies at home. To make it quieter, put

upholstered furniture, carpets, upholstery made of soundproof material.

Messages are accompanied by a presentation.

V. Report of the work of the group of ecologists and doctors.

We needed to find out how noise affects the physiological and psychological state of a person.

What is noise? What effect does it have on the human body?

The research work was carried out in the following directions.

1 student: What are the characteristics of sound: intensity and loudness, hearing threshold, pain threshold, noise characteristics of buildings, roads, a number of enterprises, sanitary standards;

2 student: A conversation with a safety engineer at a locomotive depot on the following issues: what is the noise level in workshops, in an electric locomotive, in a diesel locomotive? How do infrasonic vibrations affect the locomotive crew? Are there anti-sleep settings?

3 student: Conversation with the workshop doctor: How often do drivers and assistants seek medical help? What is their age? How does noise affect the nervous system and hearing loss in teams?

4 student: With the help of a sound meter, the noise level was measured at recess at school, on the street, near schools, kindergartens.

5 student: Reporting the danger of misuse of portable players.

Lesson summary.

Teacher: What new have we learned in today's lesson? What performances did you like the most? What comments can be made about the work of the conference?

Home task.

Choice of home assignment: make a simple musical instrument, prepare reports on infrasounds and ultrasounds, make a presentation, publish a wall newspaper.