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

Social scientists, Write an essay to answer the following question: How ca...

Write an essay to answer the following question: How can social scientists explain human behaviour scientifically?Discuss the merits and limitations of the applications of the sci

Introduction to radiation and chemical hazards, INTRODUCTION :  You read a...

INTRODUCTION :  You read about the fire hazards, general precautions and remedial measures in case of an outbreak of fire in the previous unit. In this unit you will learn about t

What is clay minerals, What is clay minerals The fraction of secondary ...

What is clay minerals The fraction of secondary minerals is often mixed with primary minerals and oxides of iron, aluminium and silicon and has a size of less than       0.002

Define nerve cell morphology, Define Nerve Cell Morphology The neurons ...

Define Nerve Cell Morphology The neurons in the mammalian nervous system occur in a variety of shapes and sizes. A typical cell has a cell body, the dendrites, axon and its ter

What is results of recipient operation, What is Results of Recipient Operat...

What is Results of Recipient Operation ? International Society for Heart and Lung Transplantation (ISHLT) maintains data from more than 300 centres starting from 1980. Data fo

Determine the most important soil animals, Explain why earthworms are said ...

Explain why earthworms are said to be the most important soil animals. Earthworms ingest organic matter as well as soil where they mix, granulate and excrete to increase stabil

Vaccination, Vaccination: Now  let us see how vaccination protects us...

Vaccination: Now  let us see how vaccination protects us from disease. We have mentioned above that the W.B.Cs.  produce antibodies which neutralise the toxins produced by th

Ribonucleic acid (rna) and deoxyribonucleic acid (dna), Ribonucleic acid...

Ribonucleic acid  (RNA) and  deoxyribonucleic acid  (DNA) have  ribose  and deoxyribose as the pentose sugar, respectively. They also differ, to some extent, in possession of  nit

Explain the duodenum - small intestine, Explain the Duodenum The first ...

Explain the Duodenum The first part of the small intestine is called the diodenum. It is about 10 inches in length. At the mid-point of the duodenum, there is a common opening

Describe physical properties of amino acid, Physical Properties of Amino ac...

Physical Properties of Amino acid:- Solubility : Amino acids are readily soluble in water, slightly soluble to insoluble in ethanol and insoluble in ether. Tyrosine  is solubl

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