Rockets or launch vehicles, Science

Assignment Help:

Rockets or Launch Vehicles:

Every flight into space begins with a rocket launching. The rocket can lift a satellite or spaceship  carrying human beings and equipment into space. Therefore,  it is also called launch vehicle. The rocket has been known to mankind  for centuries. Rockets used as firecrackers are a common sight on festive occasions  in our country. But the rockets that launch space whicles use highly advanced technology, and, of course, they are far more  

 

2479_Rockets or Launch Vehicles.png

When  the  fuel  in the rocket is set tofire, a stream of hot gases is expelled at a high speed from its rear end (Fig).  As  ireaction to  the thrust of  the,gases,  the rocket moves in the opposite direction. As  long as the  fuel  in the rocket burns, shooting out gases, the rocket continues to accelerate forward, and acquires great speed. No single  rocket fired  from the earth can attain in one go the high speeneeded  to orbit the earth, or to escape its pull. Higher speeds are  reached by using big and small rockets, in stages. in the launch vehicle. As  the large rocket soars into space and uses up its fuel, lt IS separated from the smaller  rocket and drops off. The smaller  rocket already going at high speed is  then fired to accelerate  it to an even higher speed. Three-stage rockets are usually able to achieve speeds suitable for most purposes in  space (Fig). The final stage of  the launch vehicle carries the payload. Activity Verify the principle of  rocket motion by  releasing an inflated  balloon with its neck open. The different kinds of  payloads that rockets carry into space include artificial  satellites and space probes to nearby heavenly bodies. The satellites and probes themselves carry communication and research Quipment.  

 


Related Discussions:- Rockets or launch vehicles

Explain rhythmicity - properties of a beating heart, Explain Rhythmicity - ...

Explain Rhythmicity - Properties of a Beating Heart Not only does the denervated heart continues to beat, it does so remarkably rhythmically. What it means is that the heartbea

Explain accessory organs which help in digestion, Explain Accessory Organs ...

Explain Accessory Organs which help in Digestion The gastrointestinal tract receives various secretions. Some are secreted from the glands in the lining membrane of the organs,

Oxidising substances , Oxidising Substances : It includes oxidising substa...

Oxidising Substances : It includes oxidising substances and the organic peroxides. Oxidising substances are by themselves not combustible but by feeding oxygen to other substances

Define specific gravity and ph of urine, Specific gravity and pH of Urine ...

Specific gravity and pH of Urine  Normally, the first morning urine has a specific gravity of 1.015 to 1.020. Normal urine is usually slightly acidic with a pH of about 6.0.

Define red cells – component of blood, Define Red Cells – Component of Bloo...

Define Red Cells – Component of Blood These are employed in the treatment of all kinds of anaemia which can't be medically corrected, like when rheumatoid arthritis or cancer i

Determine about the soil humus, Determine about the soil humus The orga...

Determine about the soil humus The organic constituents (organic colloids) are due to mainly the plants and partly the animals.  They form only a small fraction and get transfo

Cholagouge action and absorptive function of bile, Cholagouge action and Ab...

Cholagouge action and Absorptive function of bile Cholagouge action: Bile acts as its own stimulus. Bile salts are absorbed from the intestine, carried to the liver and stimula

Waste water treatment, discuss various types of screens and add a note on s...

discuss various types of screens and add a note on screening is a stratgy used in waste water plant

Transfer from large containers, Transfer from Large Containers : As with a...

Transfer from Large Containers : As with all dangerous operations, it will pay you to think what the worst possible accident may be that could result from your actions and what wo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd