Sound of a certain height

The first letter "t"

The second letter "O"

Third letter "H"

Last beech letter "H"

The answer to the question "sound of a certain height", 3 letters:
tone

Alternative questions in crosswords for tone

Trustee ... conversation

In addition to the Church of Christ the Savior, in his asset all 34 stations on the line Petersburg-Moscow

Physical characteristic of the height of the sound

Tint and sound speech, and paints of artistic fabric

Determination of the word tone in the dictionaries

Explanatory dictionary of the Russian language. D.N. Ushakov The meaning of the word in the dictionary Explanatory dictionary of the Russian language. D.N. Ushakov
Tone, MN. Tones tone, tones, m. (Greek Tonos). Sound generated by periodic air fluctuations, musical sound, unlike noise (Piz., Muses). Chord is called the simultaneous combination of three, four or five different tones located famous ...

Wikipedia The meaning of the word in the Wikipedia dictionary
"Tone" is a multi-valued term.

Explanatory dictionary of the living Great Russian, Dal Vladimir The meaning of the word in the dictionary Explanatory dictionary of the living Great Russian, Dal Vladimir
m. Franz. MUZ. every sound, ringing, hum, voice; And any change in sound is an increase or decrease in tone. Get into tone, take a given note. MUZ. sound quality or zyq. Good and bad tone of the violin. This piano is tone full, thick and soft. Tone string ...

Examples of the use of the word tone in the literature.

Replacing the distinction of military time from the Red Garus with golden galums and shifting the Germans arrogant tone The winners, the former modest lieutenants and captains looked colonels, colonels - generals, and the latter seemed impregnable marshals.

Rather, Abdalla Hassan moved to signer toneBut Seryoga was quiet, but the foil is all nonsense.

Last paragraph So, having a topic and concept, collecting and treating the material, making a plan and pondering the plot, confusing itself from stamps, overcoming the resistance of the first paragraph and ticking in this way faithful tone narration, etc.

Four of my guys died during the boarding attack, - he noticed in temptation-quiet ton.

But, finishing the etiquette, sharp ton Said: - You handed me Abe, but all the time call him and give different orders.

\ For physics teacher

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Information Conference on the topic: "To live in the world of sounds - happiness."

The development of the lesson sent: Artyukhova Lyudmila Ivanovna, physician teacher MOU SOSH No. 56 Petrov Val, Kamyshinsky municipal district, Volgograd region [Email Protected]

Objectives:consolidation of students' knowledge on "sound phenomena"; instilling self-education skills, develop the ability to publicly advocate; Develop creative technical abilities.

Equipment: oscilloscope, microphone, tunes, beads, musical instruments, metal ruler, minzur, tables, wall newspapers, homemade devices (flute, sv

yraft, Bottle), Balloons, Sand, Bell, Presentations of students, Computer, MultimediaProjector.

Students are divided into groups: Biologists, historians and writers, music lovers, architects, environmentalists and physicians.

Organizing time

The execution of a small musical work on the violin, the record trill the birds, noise of the operating engine.

Teacher:

What did we hear? That is the sounds published by bodies.

I accidentally got a card. On it such lines:

I appeal to you for help.

I am a man deprived of hearing.

Live in the world of sounds - happiness.

I have no such happiness.

Natural sounds - I do not know.

No opportunity to speak ...

We have the opportunity to hear and speak.

People have long guessed that sounds can be born, moving around or dying. Without big knowledge, mastered wonderful tools, built beautiful theaters and cathedrals. But K.

we have got up tasks to build a supersonic aircraft or create a high-quality entry - without science nowhere.

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

Today you are not just disciples, you are experts who study the sound in integration with other educational items.

Plates on your tables saying that you seriously prepared for the information conference. What is the purpose of the lesson?

(Record on the board the topic and purpose of the lesson).

Actualization of knowledge

Open Conference Need to Some Key:

1. Oscillations of an elastic medium perceived by the human ear ( 1BUKVA).

2. Sound of one defined frequency ( 3 letter).

3. Section of physics studying sound waves ( 1 letter).

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

5. Changes occurring in nature ( 1 letter).

I. Slovo is provided to a group of biologists.

Messages (presentation):

1. Sound sources in humans.

2. The structure of the hearing apparatus in humans.

4. Bioacousty fish.

Conclusions:

II. Historians and writers are reported on the fulfillment of the task.

Messages:

1. Talking statues.

2. Bells in the desert.

3. What is Echo?

4. Why is the wind?

Conclusions:

The passage of the musical work sounds.

III. Speech of music lovers section.

1 Freaker: Dear friends! Who among us does not like music? Opera, symphonic, pop - music integral part of the spiritual culture of mankind. Music is able to express feelings

and the thoughts of people of various nationalities, her tongue is understandable to everyone.

2 headroom: Music is great! But what's the physics?

1 Freaker: Music is sounds. The sound obtained by the tape is the sound of one frequency. It is called a musical tone. In the auditory sensation, the sounds differ in height, volume, timbre

These physiological characteristics depend on the frequency, amplitude and form of oscillations. Look, here is the oscilloscope and the microphone. I excite the tankon. We see that the oscillations of sinusoy

divine, one frequency and amplitude. I will hit stronger. What was the amplitude of oscillations? What is the sound volume? Let's try to pronounce the word. Is the same form of hens

Output:

1 student: Mind sounds from 16 to 20000 Hz. The sound with a frequency of 16 Hz is the lowest, which hears a person. Such sounds give the body. With the help of piano, you can get sounds from 27 to 4096 Hz, Viola

nCEL from 65 to 1500 Hz, drum from 50 to 5000 Hz. Human voices are divided from the frequency range so:

men's - bass, baritone, tenor; Female - contralto, mezzo - soprano, coluturated soprano. The lowest bass are the frequency of 60-350 Hz. Singer Casper Feather retracted sounds

2 headroom: Listen to how marine sink sounds. Why? How to overhear what are they talking about in the next room? Why does the Fondoscope box? Why do we unwittingly reveal the mouth when

ice to remote noise? What is common to these tasks? We observe the phenomenon of acoustic resonance. What it is?

Here are 2 single-frequency tuning. We excit one of them, and then touch your hand. He fell silent. Protect experience. Why hear the sound of another tuning? Fluctuations of the first challennel call

the difference of air pressure drops, which led to the oscillatory movement of the branch of the second Chamberton. Understanding what resonance is, you can explain why Cameron, guitar, balalaica, violin, well

rubber drawers. They contain air, which is an oscillatory system. The size of the boxes are selected in such a way that the air post resonates on the fluctuations of the branch

she is for Kameton, strings. At the same time, the sounds will be intensified. The resonance phenomenon is used in all musical instruments. Organ tubes, pipes of wind instruments, violin housing, g

iTAR, having a whole set of own frequencies, resonate with tones and overtones of primary sound sources, enhance their radiation, giving sounds and timbre.

3 student: Here is a guitar. It has only 6 strings. But how many sounds can be obtained? Why?

(Demonstration of homemade musical instruments and explanation of the principles of their work.)

IV. Looking forward to representatives of architecture:

Our group it is necessary to find out what properties of sound waves are used and take into account during the construction of temples, concert halls and residential premises.

1 student: The duties of the architect include not only the creation of the appearance of the building, but also thinking of the internal planning. The architectors of the past centuries planned halls for obligations

sampling and error assemblies. The ancient Greeks and the Romans came up with an amphitheater. Already in those days, they knew the acoustic secrets hit us and now: on stage you can ruin

put a piece of paper and this weak witness will be clearly heard at the very top of the amphitheater, for tens of meters from the scene. In ancient temples, wonderful acoustic effects were created:

then talk in one corner of the temple, and in the opposite whisper will be perfectly distinguishable. During the construction of open amphitherars and closed temple structures, reflected, etc.

establish and focusing sound waves. There were failures. It was worth at least a bit of resizing a well-planned building, and the new hall chalk is bad acoustics. Theo became needed

retical studies. Architectural acoustics. Her ownlist was American physicist Valk Sabin.

In the closed room, the sound can be reflected. This leads to reverb - an increase in the duration of sounds. In this case, it will be illegible. Reverb time depends on Mother

fishing for covering the ceiling, walls, chairs, on the shape and size of the hall. The absorption coefficient of all materials depends on the frequency of the sound. Derevo, the plaster absorbs 3% of the incident energy

wood. The sound of the fabric is stronger. The clothes of one person absorbs as much sound energy as 20 square meters of plaster. Loose upholstered by velvet moved into the past. Ce

right use lungs, fire-resistant, porous materials.

Experience: Speak into the microphone of the word. To the Watu on the way. It can be seen that the amplitude of the oscillations became less. Top absorption with porous bodies use at home. To be quieter, put

upholstered furniture, carpets, make upholstery from soundproof material.

Messages are accompanied by a presentation.

V. Report of the work of the group of environmentalists and physicians.

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

What is noise? What is the impact on the human body?

Research work was carried out in the following directions.

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

2 student: Conversation with engineer on the safety engineer of the locomotive depot on such issues: What is the noise level in the workshops, in electric locomotive, in diesel locomotive? How are infrasonic fluctuations on a locomotive brigade? Is there an antison attitude?

3 student: Conversation with a shop doctor: how often do machinists and helpers treat medical help? What are their age? How does the noise affect the nervous system and the decline in hearing a brigade?

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

5 student: Message about the danger of abuse of portable players.

The outcome of the lesson.

Teacher: What new we learned today at the lesson? What performances did you like more? What comments can be done about the work of the conference?

Delivery task.

Task at home to choose from: Make a simple musical instrument, prepare messages about infrase and ultrasound, make a presentation, release a wallpaper.