Why does a rocket fly. Fun physical experience at home

ENTERTAINING EXPERIENCES AT HOME
Directory / Entertaining experiences / Experiments in physics

Why is the rocket flying? Physical experiments

Entertaining experiments in physics

Entertaining experiences at home / Physics experiments for children

Why is the boat floating? Because the rower works with oars. The oars rake in the water and push the boat forward. Why is the bird flying? Because she flaps her wings. Wings, like oars, scoop up the air and push the bird forward. Why is the plane flying? Because the engine is running and spinning the propeller. The propeller cuts into the air like a screw through a board and pulls the plane forward.

If there is no board, you can turn the screw as much as you like. He will not go forward. If there is no air, the propeller can also be turned as much as you like. He won't move forward either. And he will not go, and the plane will not pull along. This means that the plane can only fly where there is air. But the plane will not fly to the moon. It will only rise higher, and there is already very little air. Further and completely airless space begins. How can you fly there?

Only a rocket can reach the moon. She doesn't need air, she pushes herself. The rocket has a special engine. It burns fuel and produces a lot of hot gases. There is a hole in the bottom of the rocket. It's called a nozzle. From this nozzle, gases escape in a strong jet. It is from them that a fiery tail remains behind the rocket. The jet beats back - the rocket flies forward. Unclear? Let's do an experiment.

No, we won't fly to the moon yet. And we will not launch rockets. We will just make a water carousel out of a tin can. We can't get enough materials for a space rocket anyway. And there is always an empty can. And the tools you need are the simplest - a hammer and a small nail.

In the side wall of the jar, at the very bottom, punch a hole with a nail. Then, leaving the nail in the hole, bend it to the side. It is necessary that the hole turned out to be oblique and the jet from it hit sideways. On the other side of the can, use the same nail to punch a second hole, just opposite the first. And also bend the nail to the side so that the hole is oblique. Just look first in which direction to bend. If you bent to the left for the first time, then bend to the left now. That's what we have in the picture.

At the top of the jar, punch two more holes, also one against the other. Only here the nail does not need to be bent. These holes may be straight. Pass the ends of a long thread through the upper holes and tie them. Here is the device for our experiments. Grab a bucket of water with you and step into the yard.

Why is the rocket flying?

Fill the jar with water and lift it up by the string. Water will flow from the lower holes in two oblique streams. Of course, these trickles are much weaker than the jet of flame that shoots out of the nozzle of a rocket. But they will also work. The jets hit in one direction - the bank will spin in the other.

From these experiments, a puddle forms in the yard. And you yourself will probably get wet too. Well, nothing! But now you know why the rocket flies!

Author: Galpershtein L.Ya.

We recommend interesting experiments in physics:

▪ Torsional pendulum

▪ Bird's trick

▪ electric octopus

We recommend interesting experiments in chemistry:

▪ Homemade indicators

▪ Fingerprints - how to make them visible

▪ Removing berry stains

See other articles Section Entertaining experiences at home.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

Fresh apples all year round 29.11.2019

Researchers at the University of Washington have developed a new variety of apples that, when properly stored, can stay fresh for up to one year.

A new variety of red apples was named "Space Crunch". Its appearance was the result of long-term research on crossing many varieties of this fruit. Scientists from the University of Washington have been experimenting with hybrid varieties of Enterprise and Honeycrisp apples for many years - since 1997.

Cosmic Crunch apples can be stored at a temperature of +10°C for up to 1 year, if you put the fruit in the refrigerator - their shelf life will be reduced to six months. Stored at room temperature, apples will stay fresh for several weeks.

Other interesting news:

▪ Flash drives outperform HDDs in terms of storage density

▪ Paracetamol during pregnancy affects children's behavior

▪ When Europe Was Deserted

▪ Image processing module with native deep learning neural network

▪ Fujifilm and Panasonic develop an organic image sensor

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Biographies of great scientists. Article selection

▪ article Soar in the clouds. Popular expression

▪ article What items are in Bob Marley's crypt? Detailed answer

▪ article Phytolacca edible. Legends, cultivation, methods of application

▪ article SOS device. Encyclopedia of radio electronics and electrical engineering

▪ article Laying handkerchief. Focus secret

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews