In school physics lessons, teachers always say that physical phenomena are everywhere in our lives. We just often forget about it. Meanwhile, the amazing is near! Do not think that you will need something supernatural to organize physical experiments at home. And here's some evidence for you ;)

magnetic pencil

What needs to be prepared?

• battery.
• Thick pencil.
• Copper insulated wire with a diameter of 0.2-0.3 mm and a length of several meters (the more the better).
• Scotch.

Conducting experience

Wind the wire tightly turn to turn on the pencil, not reaching its edges by 1 cm. One row is over - wind the other from above into reverse side. And so on, until all the wire is finished. Do not forget to leave two ends of the wire 8–10 cm each free. To prevent the turns from unwinding after winding, secure them with tape. Strip the free ends of the wire and connect them to the battery contacts.

What happened?

Got a magnet! Try to bring small iron objects to it - a paper clip, a hairpin. Are attracted!

Lord of the water

What needs to be prepared?

• A stick made of plexiglass (for example, a student's ruler or an ordinary plastic comb).
• A dry cloth made of silk or wool (for example, a wool sweater).

Conducting experience

Open the faucet so that a thin stream of water flows. Rub the stick or comb vigorously on the prepared cloth. Quickly bring the wand close to the stream of water without touching it.

What will happen?

A jet of water will be bent by an arc, being attracted to the stick. Try the same with two sticks and see what happens.

spinning top

What needs to be prepared?

• Paper, needle and eraser.
• A stick and a dry woolen cloth from a previous experience.

Conducting experience

You can manage not only water! Cut a strip of paper 1-2 cm wide and 10-15 cm long, bend along the edges and in the middle, as shown in the figure. Insert the needle with the pointed end into the eraser. Balance the workpiece-top on the needle. Prepare a “magic wand”, rub it on a dry cloth and bring it to one of the ends of the paper strip from the side or top, without touching it.

What will happen?

The strip will swing up and down like a swing, or it will spin like a carousel. And if you can cut a butterfly out of thin paper, then the experience will be even more interesting.

Ice and fire

(the experiment is carried out on a sunny day)

What needs to be prepared?

• A small cup with a round bottom.
• A piece of dry paper.

Conducting experience

Pour into a cup of water and place in the freezer. When the water turns to ice, remove the cup and place it in a bowl of hot water. After a while, the ice will separate from the cup. Now go out to the balcony, put a piece of paper on the stone floor of the balcony. With a piece of ice, focus the sun on a piece of paper.

What will happen?

The paper should be charred, because in the hands it is no longer just ice ... Did you guess that you made a magnifying glass?

Wrong mirror

What needs to be prepared?

• Transparent jar with a tight-fitting lid.
• Mirror.

Conducting experience

Pour excess water into a jar and close the lid to prevent air bubbles from getting inside. Place the jar upside down on a mirror. Now you can look in the mirror.

Zoom in on your face and look inside. There will be a thumbnail. Now start tilting the jar to the side without lifting it from the mirror.

What will happen?

The reflection of your head in the jar, of course, will also tilt until it is turned upside down, while the legs will not be visible. Pick up the jar and the reflection will flip again.

Bubble Cocktail

What needs to be prepared?

• A glass of strong salt solution.
• Battery from a flashlight.
• two pieces copper wire about 10 cm long.
• Fine sandpaper.

Conducting experience

Clean the ends of the wire with fine sandpaper. Connect one end of the wires to each pole of the battery. Dip the free ends of the wires into a glass of solution.

What happened?

Bubbles will rise near the lowered ends of the wire.

Lemon battery

What needs to be prepared?

• Lemon, thoroughly washed and wiped dry.
• Two pieces of insulated copper wire approximately 0.2–0.5 mm thick and 10 cm long.
• Steel paper clip.
• Bulb from a flashlight.

Conducting experience

Strip the opposite ends of both wires at a distance of 2–3 cm. Insert a paper clip into the lemon, screw the end of one of the wires to it. Insert the end of the second wire into the lemon 1-1.5 cm from the paper clip. To do this, first pierce the lemon in this place with a needle. Take the two free ends of the wires and attach the bulbs to the contacts.

What will happen?

The lamp will light up!

You have probably heard that there is such a science - physics? However, this is not important. The main thing is that you are constantly confronted with physical phenomena in your life, but maybe you are not aware of it. Why this or that phenomenon occurs, you will learn at school - everything has its time. And those who were at school and forgot everything, do not worry), there is everything here for everyone. You never know what is useful in life.

Almost scientific experiments in the kitchen

Experience first. Pour some water into an ice cube tray and let your little one place it in the freezer. After a couple of hours, pull out the mold and make sure that ice has appeared in it instead of water. What a miracle, where did it come from? Will the baby be able to figure it out on his own? Is solid ice really the same water? Or maybe it was mom who came up with some kind of tricky trick and changed the molds in the freezer? Okay, let's check it out! In the heat of the kitchen, the ice will quickly melt and turn into ordinary water. Here is an amazing discovery for you: in the cold, liquid water freezes and turns into solid ice. But water can turn into more than just ice. Pour the melted water into a saucepan, put it on the fire and let the baby watch it carefully while you are busy with your own business. When the water boils, pay attention to the rising steam. Gently bring a mirror to the saucepan and show the baby the droplets of water formed on it. So steam is also water! Yes, they are tiny water droplets. If the saucepan boils long enough, all the water will disappear from it. Where did she go? Turned into steam and scattered throughout the kitchen.

Second experience. Fill a plate with some water, mark its level on the wall of the plate with a marker and leave it, say, on the windowsill for a few days. Looking into the plate every day, the baby will be able to observe the miraculous disappearance of water. Where does the water go? In the same way as in the previous experiment, it turns into water vapor - it evaporates. But why in the first case the water disappeared in a matter of minutes, and in the second - in a few days, let the baby think for himself. If he finds a connection between evaporation and temperature, you can rightfully be proud of your little physicist. Now, based on the new knowledge of the crumbs, you can explain to him what fog is, and why steam comes out of the mouth in the cold, and where the rain comes from, and what happens in the jungle when a hot sun peeps out after a tropical downpour, and many, many others are amazing interesting phenomena.

Stretch a string through the ice

It turns out that ordinary ice is a serious thing, sometimes even dangerous. But he has a weak point. Ice can be cut... with wire!

Place a block of ice or a large icicle on the backs of two chairs. Throw a loop of steel wire no more than 0.5 mm thick on this ice and hang two irons from it. Slowly but steadily, the wire cuts into the ice. Deeper, deeper... And now boom! The irons fell, the wire went through. Look, the ice block is intact, as if it had not been cut. How could this happen?

More skillful than Columbus

“Christopher Columbus was a great man,” wrote one schoolboy in his class essay, “he discovered America and laid an egg.” Both feats seemed to the young schoolboy equally worthy of amazement. On the contrary, the American humorist Mark Twain did not see anything surprising in the fact that Columbus discovered America. "It would have been surprising if he hadn't found her on the spot."

And I dare to think that the second feat of the great navigator is not worth much. Do you know how Columbus set the egg? I simply crushed it to the table, breaking the shell at the bottom. In doing so, of course, he changed the shape of the egg. And how to put an egg without changing its shape? The brave sailor never solved this problem.

Meanwhile, it is incomparably easier than discovering America and even the tiniest island. I will show you three ways: one for boiled eggs, another for raw eggs, and a third for both.

Centrifugal force

We encounter centrifugal force much more often than we ourselves suspect. You are circling a stone tied to a string around your hand. You feel how the string is stretched and threatens to break under the influence of centrifugal force. An ancient weapon for throwing stones - a sling - works with the same force. The centrifugal force breaks the millstone if it is turned too fast and if it is not strong enough. If you are agile, the same strength will help you perform the trick.

"Physics in balloons"

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Smoke from the water

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Entertaining physics in questions and answers Site of Victor Elkin

Ya. I. Perelman Entertaining physics

Experience with an ordinary stick helps to understand the laws of friction.

In this book, the author seeks not so much to inform the reader of new knowledge, but to help him “learn what he knows”, i.e., deepen and revive the basic information from physics he already has, teach him to consciously dispose of them and encourage them to diversify their application. . This is achieved by considering a motley series of puzzles, intricate questions, entertaining stories, amusing problems, paradoxes and unexpected comparisons from the field of physics, related to the circle of everyday phenomena or drawn from well-known works of science fiction fiction. The compiler used the material of the latter kind especially widely, considering it to be the most appropriate for the purposes of the collection: excerpts from the novels and stories of Jules Verne, Wells, Mark Twain, and others are given. The fantastic experiences described in them, in addition to their temptation, can also play an important role in teaching as live illustrations.

The compiler tried, as far as he could, to give the presentation an outwardly interesting form, to impart attractiveness to the subject. He was guided by the psychological axiom that interest in a subject increases attention, facilitates understanding and, consequently, contributes to a more conscious and lasting assimilation.

Physics for the little ones (for children from 2 to 10 years old)

If your child asks you why snow melts and turns into water, and water boils and turns into steam, then it's time to introduce him to our film. "Physics for the little ones" is the program that will help him find the answer to so many questions. Bunny and his new friend The robot in an easy and exciting manner will explain to your child how everything works in the world around us from the point of view of the great science of Physics. By the way, we advise you to watch the film with the whole family, then it will be easier to answer the children's "Why?" And How?". Cartoon file size: 365.34 MB

floating through the air

For the case we need sheets tissue paper, strips of cardboard, a little casein glue or PVA (but not silicate), old newspapers, scissors, a ruler and a square.

It is better to launch the ball with a partner - one holds it by the loop, the other fills it with air.

A carefully glued ball can stay in the air for quite a long time and cover long distances. Of course, if the space allows.

Strange noises

Take a two-liter bottle of lemonade, a coin that can cover the neck of the bottle, a cup of water.

1. Put an empty, unopened bottle in the freezer for a few minutes.
2. Moisten the coin with water.
3. Cover the bottle taken out of the freezer with a coin.

After a few seconds, the coin begins to bounce and, hitting the neck of the bottle, makes sounds resembling clicks. The coin is lifted by air, which has compressed in the freezer and occupied a smaller volume, and now has heated up and began to expand.

Mighty Breath

Take a clothes hanger, strong thread, a book.

1. Tie a book with thread to a clothes hanger (see pic.)
2. Hang the hanger on the clothesline.
3. Stand near the book at a distance of about 30 cm. With all your might, blow on the book. It will slightly deviate from its original position.
4. Now blow on the book again, but gently. As soon as the book deviates a little, blow after it. And so several times.

It turns out that such repeated light blows can move the book much further than once strongly blowing on it.

Record weight

Take a sheet of paper, an empty glass jar, two tin cans.

1. Place two tin cans at a distance of 30 cm from each other.
2. Put a piece of paper on top to make a "bridge".
3. Place an empty glass jar on top. The paper will not support the weight of the can and will bend down.
4. Now bend a sheet of paper with an accordion (Fig. A, B, C, D).
5. Put this "accordion" on two tin cans and put a glass jar on it (Fig. E). The accordion does not flex.

Smart games - Physics

The release of the "Young Physicist" kit for conducting 50 experiments on electricity is timed to coincide with the centenary of the publication of Tom Tit's classic three-volume work - "Entertaining Science". The words written in the preface to its first edition remain relevant today: “Among the experiments described in this book, there are simple undertakings that will be entertainment for parents and children gathered around the table in the evening. And there are other ideas here - real scientific experiments; they will make us fall in love with physics, the marvelous science to which we owe the discovery of steam, the telephone, the phonograph, and which, perhaps tomorrow, will reveal to us new mysteries. Paris, January 1, 1890" The Science Entertainment set is a game for children from 7 to 14 years old.

Personal experience in conducting experiments

I'll tell you what we did at home, otherwise I write about experiments, all this is chatter, and this is evidence, so to speak.
Well, firstly, the Child comes from the circle “My first journey into science, experiments in physics and chemistry”, and tries to repeat the experiments at home, if of course it is possible, since some experiments require special reagents.
Here's what my dad and I were shown:
1. I poured water into a glass and turned it upside down. As expected, the water poured out. Then, she once again poured water into the same glass, covered it with a sheet of paper, pressed the sheet firmly against the edge of the glass, turned the glass over and let go of the sheet. The result is that water does not spill out. Focus was a success only the third time.
2. Foil that can dance. The experience is simple, that's what needs to be done. Cut aluminum foil (shiny chocolate or candy wrappers) into very narrow, long strips. Run the comb through your hair, and then bring it close to the sections. The stripes will begin to dance. This attracts to each other positive and negative electric charges.
3. Ball rescue. We all know that if a balloon is pierced, it will burst. The daughter showed that you can pierce the ball, and it will remain intact. You can also repeat this experience. Stick on the ball on both sides of a piece of adhesive tape. And now you can safely pierce the ball through the tape without any harm to it.
4. Refraction of light. This is the simplest, fill a glass with water, put a pen or pencil in it, and look.
There were quite a few experiments, unfortunately I don’t remember everything, and I can’t describe everything.
5. And so, we had fun on the beach. They brought a magnifying glass from home and showed her
how a magnifier focuses Sun rays. To begin with, we pointed a magnifying glass at a drop of water and observed. Then they tried to set fire to paper, white and black. They drew conclusions about what would light up faster, and why. At the end of the vacation, the owner sawed out a beautiful piece of plywood for us, we wrote the name of the child, and the place where we rested. And the daughter and dad burned these inscriptions. The experiments, of course, were accompanied by explanations, they said that it was precisely due to its property to focus the rays of light at one point that the magnifying glass magnifies objects. Before going to the beach with a magnifying glass, they explained that you can’t look at the sun through a magnifying glass, your eye will burn. The fact that this is not a joke, dad immediately confirmed by setting fire to a piece of paper, which instantly flared up. And most importantly, so that the daughter does not decide to experiment on her own, try to hide the magnifying glass away, and give her a magnifying glass, only in our presence.
6. Our little reason tortured us with how to make a magnifying glass ourselves, The answer to her question was this. After all, a drop is a natural lens that magnifies objects. For a baby, this will be an amazing discovery. Prepare a plastic plate in advance: cut a hole with a diameter of 5-6 mm using a hot tool. Sand the edges of the hole. Invite the child to carefully place a drop of water on the hole with his finger and look through it at a flower, a bug, a pine needle, a dandelion seed. Let him discover for himself that a drop of water is a natural lens. The hint was found on the site, http://www.danilova.ru.
7. Here's another experiment you can do using the sun's rays. Place the crystal glass on a white sheet of paper. Try to catch sunlight with your glass. Colored rainbow stripes will appear on a piece of paper.

Many people think that science is boring and dreary. So says the one who has not seen the science shows from "Eureka". What happens in our "lessons"? No cramming, boring formulas and a sour expression on the face of a desk mate. Children like our science, all experiments and experiments, they love our science, our science gives joy and stimulates further knowledge of complex subjects.

Try it yourself, to conduct entertaining experiments in physics for children at home. It will be fun, and most importantly, very informative. Your child will get acquainted with the laws of physics in a playful way, and it has been proven that in the game, children quickly and easily learn the material and remember for a long time.

Entertaining experiments in physics that should be shown to children at home

Simple entertaining experiments in physics that children will remember for a lifetime. Everything you need to conduct these experiments is at your fingertips. So, forward to scientific discoveries!

A ball that doesn't burn!

Props: 2 balloons, candle, matches, water.

Interesting experience: We inflate the first balloon and hold it over a candle to demonstrate to the kids that the balloon will burst from the fire.

Pour plain tap water into the second ball, tie it up and bring the candles to the fire again. And about a miracle! What do we see? The ball does not burst!

The water that is in the balloon absorbs the heat generated by the candle, and therefore the balloon does not burn, therefore, does not burst.

Wonder Pencils

Requisites: plastic bag, regular sharpened pencils, water.

Interesting experience: Pour water into a plastic bag - not full, half.

In the place where the bag is filled with water, we pierce the bag through with pencils. What do we see? In places of a puncture - the package does not leak. Why? And, if you do the opposite: first pierce the bag, and then pour water into it, the water will flow through the holes.

How the "miracle" happens: explanation: When polyethylene breaks, its molecules are attracted closer to each other. In our experiment, the polyethylene is pulled around the pencils and keeps the water from leaking.

Non-popping ball

Requisites: balloon, wooden skewer and dishwashing liquid.

Interesting experience: Lubricate the top and bottom of the ball with dishwashing liquid, pierce with a skewer, starting from the bottom.

How the "miracle" happens: explanation: And the secret of this “trick” is simple. To save a whole ball, you need to know where to pierce - at the points of least tension, which are located at the bottom and at the top of the ball.

"Cauliflower

Requisites: 4 ordinary glasses with water, bright food colorings, cabbage leaves or white flowers.

Interesting experience: We add food coloring of any color to each glass and put one leaf of cabbage or a flower in colored water. We leave the "bouquet" for the night. And in the morning... we will see that the cabbage leaves or flowers have become different colors.

How the "miracle" happens: explanation: Plants absorb water to nourish their flowers and leaves. This is due to the capillary effect, in which water itself fills the thin tubes inside the plants. By sucking in the tinted water, the leaves and color change their color.

The egg that can swim

Requisites: 2 eggs, 2 cups of water, salt.

Interesting experience: Carefully place the egg in a glass of plain clean water. We see: it drowned, sank to the bottom (if not, the egg is rotten and it is better to throw it away).
But in the second glass, pour warm water and stir 4-5 tablespoons of salt in it. We wait until the water has cooled, then lower the second egg into the salt water. And what do we see now? The egg floats on the surface and does not sink! Why?

How the "miracle" happens: explanation: It's all about density! The average density of an egg is much greater than the density of plain water, so the egg "sinks". And the density of the saline solution is greater, and therefore the egg “floats”.

Delicious Experiment: Crystal Candy

Requisites: 2 cups water, 5 cups sugar, wooden sticks for mini skewers, thick paper, transparent glasses, saucepan, food coloring.

Interesting experience: Take a quarter cup of water, add 2 tablespoons of sugar, boil the syrup. At the same time, pour a little sugar onto thick paper. Then dip a wooden skewer into the syrup and collect sugar with it.

Let the sticks dry overnight.

In the morning we dissolve 5 glasses of sugar in two glasses of water, leave the syrup to cool for 15 minutes, but not much, otherwise the crystals will not “grow”. Then pour the syrup into jars and add multi-colored food coloring. We lower the skewers with sugar into jars so that they do not touch either the walls or the bottom (you can use a clothespin). What's next? And then we observe the process of crystal growth, we are waiting for the result in order to ... eat!

How the “miracle” happens: explanation: As soon as the water begins to cool, the solubility of sugar decreases and it precipitates, settling on the walls of the vessel and on a skewer with a seed of sugar grains.

"Eureka"! Science without boredom!

There is another option to motivate children to study science - order a science show at the Evrika Development Center. Oh, what's not here!

Show program "Fun Kitchen"

Here, the kids are waiting for exciting experiments with those things and products that are available in any kitchen. The kids will try to drown the tangerine; make drawings on milk, check the egg for freshness, and also find out why milk is useful.

"Tricks"

This program contains experiments that at first glance seem like real magic tricks, but in fact they are all explained with the help of science. The kids will find out: why the balloon over the candle does not burst; what makes an egg float, why a balloon sticks to a wall... and other interesting experiments.

"Entertaining physics"

Does air weigh, why does a fur coat warm, what is common between the experiment with a candle and the shape of the wing of birds and airplanes, can a piece of fabric hold water, can a eggshell a whole elephant, these and other questions will be answered by the kids by becoming a participant in the show "Entertaining Physics" from "Eureka".

These Entertaining experiments in physics for schoolchildren can be carried out in the classroom to draw students' attention to the phenomenon being studied, while repeating and consolidating educational material: they deepen and expand the knowledge of schoolchildren, contribute to the development logical thinking instill interest in the subject.

It Matters: Science Show Safety

• The main part of the props and consumables is purchased directly from specialized stores of manufacturing companies in the United States, and therefore you can be sure of their quality and safety;
• Centre child development"Eureka" non-science shows of toxic or other materials harmful to children's health, easily breakable objects, lighters and other "harmful and dangerous";
• Before ordering scientific shows, each client can find out detailed description ongoing experiments, and, if necessary, sensible explanations;
• Before the start of science shows, the children are instructed on the rules of conduct at the Show, and professional Hosts make sure that these rules are not violated during the show.

On this page I will collect books on entertaining physics known to me: books that I have at home, links to stories and reviews about such books.

Please add in the comments what entertaining scientific books you know.

N.M. Zubkov "Tasty Science" Experiences and experiments in the kitchen for children from 5 to 9 years old. A simple little book. I would lower the age, too simple and well-known experiments, such as swimming an egg in salt water and wrapping ice cream in a fur coat. Mostly answers to children's "why?". Although, maybe I'm overly demanding) So, in principle, everything is nice and understandable)

L. Gendenstein and others "Mechanics" is a book from my childhood. In it, in the form of comics, friends get acquainted with the laws of mechanics. This acquaintance takes place in the game, in conversation, in general, in between times. I really liked her then, and still do. Maybe it was with her that my passion for physics began?

"Children's Encyclopedia". This Talmud is also from my childhood. It contains 5 volumes. There is also about art, and about geography, biology, history. And this one is natural. How many times I open it, I am so convinced that the old encyclopedias are not like the current ones. The drawings are true black and white (mostly), but there is much more information.

A. V. Lukyanova "Real physics for boys and girls". The first book on physics that I bought myself. What to say? Not immediately impressed. The book is large format, the drawings are beautiful, the paper is thick, the price is high. And in fact, not much. But, in principle, you can read, look at pictures with your child.

A. Dmitriev "Grandfather's Chest". This little pamphlet is my favorite. Almost self-published in design, but all experiments, science toys described in a very accessible and simple way.

Tom Tit "Science Fun". Everywhere this book is very praised, but I also did not really like it. Experiments are interesting. But there is no explanation. And without an explanation, it somehow turns out poorly.

Y. Perelman "Entertaining mechanics", "Physics at every step", "Entertaining physics". Perelman, of course, is a classic of the genre. However, his books are not for the little ones.

Bruno Donath "Physics in games". It looks like Tom Tit, only somehow easier on my perception and explanations of all experiments and games are given.

L.A. Sikoruk "Physics for kids". It looks something like my "Mechanics" Gendenstein from childhood. No, there are no comics here, but acquaintance with the physical laws of nature goes on in conversation and casually. I did not find this book for sale, because I only have it in print.

Well, my last hobby is cards with scientific experiments.

Spring break is approaching, and many parents are wondering: what to do with children? Home experiments in physics - for example, from the book “Experiments of Tom Tit. Amazing Mechanics is a great pastime for younger students. Especially if the result is useful thing, like a blowgun, and the laws of pneumatics become clearer.

Sarbakan - air gun

Air is widely used in various modern technical devices. Vacuum cleaners work with it, car tires are pumped with it, and they are also used in wind guns instead of gunpowder.

The blowgun, or sarbakan, is an ancient hunting weapon that was sometimes used for military purposes. It is a tube 2-2.5 meters long, from which, under the action of air exhaled by the shooter, miniature arrows are ejected. In South America, on the islands of Indonesia and in some other places, the sarbakan is still used for hunting. You can make a miniature of such a blowgun yourself.

What will be required:

• plastic, metal or glass tube;
• needles or sewing pins;
• drawing or painting brushes;
• insulating tape;
• scissors and threads;
• small feathers;
• foam rubber;
• matches.

An experience. The body for the sarbican will be a plastic, metal or glass tube 20-40 centimeters long and with an inner diameter of 10-15 millimeters. A suitable tube can be made from the third leg of a telescopic rod or ski pole. The tube can be rolled up from a sheet of thick paper, wrapped on the outside with electrical tape for strength.

Now one of the ways you need to make arrows.

First way. Take a bunch of hair, for example, from a drawing or paint brush, tie it tightly with a thread from one end. Then insert a needle or pin into the resulting knot. Secure the structure by wrapping it with electrical tape.

The second way. Instead of hair, you can use small feathers, such as those stuffed with pillows. Take a few feathers and wrap their outer ends with electrical tape directly to the needle. Using scissors, cut the edges of the feathers to the diameter of the tube.

The third way. The arrow can be made with a match shaft, and the “feathering” can be made of foam rubber. To do this, stick the end of a match in the center of a foam rubber cube measuring 15-20 millimeters. Then tie the foam rubber to the matchstick by the edge. Using scissors, shape a piece of foam rubber into a cone shape with a diameter equal to the inner diameter of the sarbican tube. Attach a needle or pin to the opposite end of the match with electrical tape.

Put the arrow into the tube with the point forward, put the tube to your closed lips, and opening your lips, blow sharply.

Result. The arrow will fly out of the tube and fly 4-5 meters. If you take a longer tube, then with a little practice and choosing the optimal size and mass of arrows, you can hit the target from a distance of 10-15 meters.

Explanation. The air blown out by you is forced to exit through the narrow channel of the tube. At the same time, the speed of its movement greatly increases. And since there is an arrow in the tube that prevents the free movement of air, it also contracts - energy accumulates in it. Compression and accelerated air movement accelerate the arrow and give it kinetic energy sufficient to fly a certain distance. However, due to friction against the air, the energy of the flying arrow is gradually consumed, and it flies.

Pneumatic lift

You've no doubt had to lie on an air mattress. The air it is filled with is compressed and easily supports your weight. Compressed air has a great internal energy and exerts pressure on surrounding objects. Any engineer will tell you that air is a wonderful worker. With its help, conveyors, presses, lifting and many other machines work. They are called pneumatic. This word comes from the ancient Greek "pneumotikos" - "inflated with air." You can test the power of compressed air and make the simplest pneumatic lift from simple improvised items.

What will be required:

• thick plastic bag;
• two or three heavy books.

An experience. Place two or three heavy books on the table, for example in the shape of the letter "T", as shown in the figure. Try blowing on them to make them fall or roll over. No matter how hard you try, you're unlikely to succeed. However, the power of your breath is still enough to solve this seemingly difficult task. Pneumatics should be called for help. To do this, the air of breathing must be “caught” and “locked”, that is, made compressed.

Place a bag of dense polyethylene under the books (it must be intact). Press the open end of the bag to your mouth with your hand and start blowing. Take your time, blow slowly, because the air will not go anywhere from the bag. Watch what happens.

Result. The package will gradually inflate, lift the books higher and higher, and finally knock them over.

Explanation. When air is compressed, the number of its particles (molecules) per unit volume increases. Molecules often hit the walls of the volume in which it is compressed (in this case, the package). This means that the pressure from the side of the air on the walls increases, and the more, the more the air is compressed. The pressure is expressed by the force applied to the unit area of ​​the wall. And in this case, the force of air pressure on the walls of the bag becomes greater than the force of gravity acting on the books, and the books rise.

Comment on the article "Entertaining physics: experiments for children. Pneumatics"

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Pneumatics. Home experiments in physics - for example, from the book "Experiments by Tom Tit. From the sixth grade, my father gave me to read all sorts of books on entertaining. Home experiments: physics and chemistry for children 6-10 years old. Experiments for children: entertaining science at home.

Entertaining physics: experiments for children at home. An experience. From experience, small children don't try any tricks. My eldest for a long time (at the age of 5) jumped on the rides on a trampoline (not on an inflatable) Entertaining physics: experiments for children. Pneumatics.

Can you tell me about physics? USE and other exams. Teenagers. Experiments for children: entertaining science at home. With the help of this experiment, the phenomenon of atmospheric pressure can be explained to the child.

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Entertaining physics: experiments for children. Pneumatics. Home experiments: blowgun and pneumatic lift. Print version. 4.4 5 (28 ratings) Rate the article.

Entertaining physics: experiments for children. Pneumatics. Experiments in physics: Physics in experiments and experiments [link-3] Cool experiments and revelations Igor Beletsky [link-10] Experiments for inquisitive schoolchildren [link-1] The structure of matter and Kafner ...

Entertaining physics: experiments for children. Pneumatics. I already wrote about a cooling bottle that swallows a balloon. The same can be done with a boiled egg :) In both cases, you need a glass one. The grades are excellent, but there is no knowledge.

Entertaining physics: experiments for children. Pneumatics. Home experiments in physics - for example, from the book "Experiments by Tom Tit. From the sixth grade, my father gave me to read all sorts of books on entertaining physics. And it is interesting in it for both children and adults. So we decided...

Home experiments: physics and chemistry for children 6-10 years old. Experiments for children: entertaining science at home. Chemistry for younger students.

Experiments in chemistry and physics. Natural Sciences. Early development. Techniques early development: Montessori, Doman, Zaitsev's cubes, learning to read, groups Tell me, please, a link for a boy 3.6 years old, the first experiments / classes in chemistry and physics. Thanks in advance.

Science experiments with children: 5 home chemical experiments. Home experiments in chemistry with children: how to make glue with your own hands at home. Experiments for children: entertaining science at home.

Game library "Merry physics". Holidays, rest. Child from 3 to 7. Education, nutrition, daily routine, visiting kindergarten and relationships with caregivers, illnesses and physical development child from 3 to 7 years old. Entertaining physics: experiments for children. Pneumatics.

Experiments for children: entertaining science at home. Experiments in physics: Physics in experiments and Glinka's "General Chemistry" is good for older students, but for kids ... Mine from the age of 9 I think that you can tell children about atoms and electrons with more caution ...

Experiments for children: entertaining science at home. Pneumatics. Home experiments in physics - for example, from the book "Experiments by Tom Tit. Compressed air has a lot of internal energy and exerts pressure on surrounding objects.

Entertaining physics: experiments for children. Pneumatics. Home experiments in physics - for example, from the book "Experiments by Tom Tit. and then immerse this spoon in a glass of water, the spoon suddenly sparkles with silver Experiments for children: entertaining science at home.

Physics experience for children: how to prove the rotation of the Earth. Passed 1543 (mat-class) + 57 (mat-class) + physical field schools (at Lukyanov's) If you don't know that there is different water in the banks, you can serve it as Experiments for children: an entertaining science at home.

Chemical experiments at home. I read below about chemistry at home and decided to add some home experiments. If interested, I can write a few more experiments in chemistry and physics. Experiments with children at home. Entertaining experiments with children.

Experiments in physics: Physics in experiments and Glinka's "General Chemistry" is good for older students, but for kids ... Mine from the age of 9 I think that you can tell children about atoms and electrons with more caution than about Entertaining physics: experiments for children. Pneumatics.