necessity is the mother of invention

padlet.com/amanisuleiman83410/53qcgd2uurbgmyux Necessity is the mother of invention Made with creativity AMANI SULEIMAN MAR 15, 2021 09:29PM Activity 1 AMANI SULEIMAN MAR 15, 2021 09:52PM People over time have thought of different ways and tools to make their lives easier. That was the reason behind the invention of winches and pulleys that you  studied in physics. Pulleys made life easier Like all simple machines, the origin of the pulley system is unknown. It goes back to 1500 BC, to the people in Mesopotamia who were using rope pulleys for lifting water. Pulleys work by trading distance for effort and changing the direction of the force. For example, using two pulleys to lift a weight, it only needs half the force to lift it as it would with one pulley, however if the weight was being lifted one metre high, two metres of rope would be needed. This is called the ‘mechanical advantage' and can be increased by adding more pulleys into the block and tackle system. Pulleys were responsible for the invention of the crane. The rst recorded cranes appeared in Greece around the late 6th century BC, now it is a tool that most of us see on an almost daily basis. AMANI SULEIMAN MAR 15, 2021 09:52PM Text/Part 1 Part_1.mp3 1:28 audio PADLET DRIVE AMANI SULEIMAN MAR 15, 2021 09:52PM

Examples of pulleys applications in our daily life: - Sails on sailboats are raised and lowered using pulleys. - Wells use the pulley system to lift the bucket out of the well. - Curtains at a theatre are moved using pulley systems that pull the curtains apart. - Escalators use pulley systems to function. The material in the text is based on an article called, “How Pulleys Changed the World?” Follow the link to read and get extra information. https://blog.ronstanindustrial.com/how-pulley-system-changed-the-world AMANI SULEIMAN MAR 15, 2021 09:52PM AMANI SULEIMAN MAR 15, 2021 09:53PM Text/Part 2 Part_2.mp3 0:42 audio PADLET DRIVE AMANI SULEIMAN MAR 15, 2021 09:53PM

ANONYMOUS MAR 20, 2021 02:56PM 'aw mshqqt, wttwffr dakhil almasead fi alwaqt alhaly, lawhat 'azrar tutih lilrukkab aikhtiar alttabiq almaqsud alwusul 'iilayh. mabda eamal almasead ttwwrt aliat tahrik almasead eabr alttarikhi, hayth bada tahrik almasead ean tariq aljahd albdny, thuma tatawur 'iilaa Doha yaser aistikhdam almuharikat albkharyt, wabaed dhlk aistikhdam almuharikat alkhrbayyt, 'illa an mabda eamal almasead zl wahdaan eabr alttarikh, wahu eibarat ean qumrat mashdudat bihibal, lirafeiha 'aw 'iinzaliha, wttmyz hadhih alhibal bannha masnueat min alhadid, ANONYMOUS MAR 20, 2021 03:04PM lltmkknAn elevator An elevator is a means of transporting people and goods from the bottom to the top and back, as it is used in skyscrapers, or in buildings that consist of many floors; In order to facilitate the process of ascending, or going down to any floor Doha yaser without effort or hardship, and there is currently inside the elevator, a button panel that allows passengers to choose the floor they are intended to access. The principle of work of the elevator The mechanism of moving the elevator has evolved throughout history, as 2 almasead almasead ebartan ean wasilat linaql alnaas walbadayie min al'asfal 'iilaa al'aelaa waleuksi, hayth yustakhdam fi natihat it started moving the elevator by physical effort, then it developed into the use of steam engines, and then the use of electric alsahabi, 'aw fi almabani alty ttkwwn min alkthyr min altwabq; bihadaf tashil emlyt alsueud, 'aw alnuzul 'iilaa ay tabiq min dun jahad motors, but the principle of the elevator’s work has remained one throughout history, which is a cabin tied with ropes, to lift it Or take it down, and these ropes are distinguished by being made of iron, to be able man hamal wazn almaseid, watasir fi masarat hadidiat mhdddt; lilmuhafazat ealaa kht sayr almasead fi kla alaitijahayn bshkl amin, wytm altahakum biharakat almaseid, min khilal ghurfat thkkm mawjudatan fawq majraa almasead bshkl mbashr fi 'aelaa albinayat, hayth tatasil hibal alrafe biqumrat alrukab, ean tariq alhibal almashdudat walmarbutat fi nizam shd alhbl, wabialttali yaemal nizam altahakum ealaa rafe 'aw 'iinzal almaseid, waeind qiam alrukkab fi qumrat almasead bialdaght ealaa lawhat al'azrar lilwusul 'iilaa 'ayi tabiq, sayueti nizam althkkm 'awamir altashghil bitadwir albikrat alty tshd alhibal min khilal mhrrk khrbayyin.Of carrying the weight of the elevator, and traveling on specific iron tracks; In order to maintain the elevator’s course in both directions safely, the movement of the elevator is controlled through a control room located directly above the elevator runway at the top of the building, where the lifting ropes are connected to the passenger cabin, through tensioned ropes tied to the tension rope system. Controlling the lift or lowering of the elevator, and when the passengers in the elevator cabin press the button panel to reach any floor, the control system will give the operation orders to rotate the pulley that pulls the ropes through an electric motor. ANONYMOUS MAR 20, 2021 03:12PM Doha yaser 3 A burnt child dreads re ‫)اﻟﻄﻔﻞ اﻟﻤﻜﺘﻮى ﺑﺎﻟﻨﺎر ﯾﮭﺎب اﻟﻨﺎر )اﻟﻠﻰ ﯾﺘﻠﺴﻊ ﻣﻦ اﻟ ُﺸﺮﺑﮫ ﯾﻨﻔﺦ ﻓﻰ اﻟﺰﺑﺎدى‬ A cat has nine lives ‫اﻟﻘﻄﻂ ﺑﺴﺒﻌﺔ أرواح‬ ������A crows on his own dunghill ‫)ﻋﻠﻰ دﻣﻨﺘﮫ ﯾﺼﯿﺢ اﻟﺪﯾﻚ )أﺳﺪ ﺑﺎﻟﺒﯿﺖ وﺑﺎﻟﺨﺮج ﻧﻌﺎﻣﮫ‬ A drowning man will clutch a straw ‫اﻟﻐﺮﻗﺎن ﯾﺘﻌﻠﻖ ﺑﻘﺸﮫ‬ a fox is not taken twice in the same snare ‫)ﻻ ﯾﺼﻄﺎد اﻟﺜﻌﻠﺐ ﻣﺮﺗﯿﻦ ﻣﻦ ﻧﻔﺲ اﻟﺸﺮك )ﻻ ﯾﻠﺪغ اﻟﻤﺆﻣﻦ ﻣﺮﺗﯿﻦ‬ A friend in need is a friend indeed ‫)اﻟﺼﺪﯾﻖ اﻟﺤﻘﯿﻘﻰ ﻣﻦ ﺗﺠﺪه وﻗﺖ اﻟﺤﺎﺟﮫ )اﻟﺼﺪﯾﻖ وﻗﺖ اﻟﻀﯿﻖ‬ A guilty conscience needs no accuser ‫اﻟﻀﻤﯿﺮ اﻟﺸﺎﻋﺮ ﺑﺎﻟﺬﻧﺐ ﻻ ﯾﺤﺘﺎج ﻟﻮﻋﻆ‬ A hungry man is an angry man ‫اﻟﺮﺟﻞ اﻟﺠﻮﻋﺎن رﺟﻞ ﻏﻀﺒﺎن‬ A jack-of-all trades master of none ‫ﺻﺎﺣﺐ ﺑﺎﻟﯿﻦ ﻛﺬاب‬ A little knowledge is a dangerous thing ‫اﻟﻤﻌﺮﻓﮫ اﻟﻘﻠﯿﻠﮫ ﺷﻰء ﺧﻄﯿﺮ‬ A living dog is better than a dead lion ‫)ﻛﻠﺐ ﺣﻰ أﻓﻀﻞ ﻣﻦ أﺳﺪ ﻣﯿﺖ )ﺣﻤﺎرﺗﻚ اﻟﻌﺎرﺟﮫ ﺗﻐﻨﯿﻚ ﻋﻦ ﺳﺆال اﻟﻠﺌﯿﻢ‬ A man can do no more than he can ‫)ﻻ ﯾﺴﺘﻄﯿﻊ اﻟﻤﺮء أن ﯾﻔﻌﻞ ﻓﻮق طﺎﻗﺘﮫ )اذا أردت أن ﺗﻄﺎع ﻓﺄﻣﺮ ﺑﺎﻟﻤﺴﺘﻄﺎع‬ A man can not serve two masters ‫)ﻻ ﯾﺴﺘﻄﯿﻊ اﻟﻤﺮء أن ﯾﺨﺪم ﺳﯿﺪﯾﻦ )ﺻﺎﺣﺐ ﺑﺎﻟﯿﻦ ﻛﺬاب‬ A man is known by the company he keeps ‫اﻧﻤﺎ ﯾﻌﺮف اﻟﻤﺮء ﺑﺄﻗﺮاﻧﮫ‬

A man's house is his castle ‫ﺑﯿﺖ اﻟﺮﺟﻞ ﻗﻠﻌﺘﮫ‬ A penny saved is a penny gained ‫)درھﻢ ﺗﺪﺧﺮه ھﻮ درھﻢ ﺗﻜﺴﺒﮫ )اﻟﻘﺮش اﻷﺑﯿﺾ ﯾﻨﻔﻊ ﻓﻰ اﻟﯿﻮم اﻷﺳﻮد‬ A prophet is not without an honor save in his own country ‫اﻧﻤﺎ ﯾﻔﻘﺪ اﻟﻨﺒﻰ آﯾﺎت اﻟﺘﺸﺮﯾﻒ ﻓﻰ وطﻨﮫ‬ A secret between more than two is not secret ‫اﻟﺴﺮ ﺑﯿﻦ أﻛﺜﺮ ﻣﻦ اﺛﻨﯿﻦ ﻟﯿﺲ ﺳﺮ‬ A soft answer turneth a way wrath ‫)اﻟﻜﻠﻤﮫ اﻟﻄﯿﺒﮫ ﺗﺒﻌﺪ اﻷذى )اﻟﻜﻠﻤﮫ اﻟﻄﯿﺒﮫ ﺻﺪﻗﮫ‬ A stitch in time saves nine ‫اﻟﺪرزه \"اﻟﻐﺮزه\" ﻓﻰ وﻗﺘﮭﺎ ﺗﻮﻓﺮ ﺗﺴﻊ‬ A tree is known by it's fruit ‫)اﻧﻤﺎ ﺗﻌﺮف اﻟﺸﺠﺮه ﺑﺜﻤﺎرھﺎ )اﻟﺠﻮاب ﺑﯿﺒﺎن ﻣﻦ ﻋﻨﻮاﻧﮫ‬ ANONYMOUS MAR 20, 2021 05:56PM ������������������������❤ ������Hadeel Huseen al Zeq (9D) ANONYMOUS MAR 20, 2021 07:07PM ‫اﻟطﺎﻟﺑﮫ ﺳوار ﺳﺎﻣر ﻣﺎﺟد اﻟﻘطﺎﻣﻲ‬ ������������

‫‪ANONYMOUS MAR 21, 2021 07:30PM‬‬ ‫ﺳﺎره اﺣﻤﺪ اﻟﻘﻮاﺳﻤﻲ‬

‫اﺳﻤﺎء ﻣﺤﻤﻮد ﻋﯿﺴﻰ‬ ‫ﺗﺎﺳﻊ د‪ ‬‬ ‫‪ANONYMOUS MAR 22, 2021 03:14PM‬‬

ANONYMOUS MAR 23, 2021 07:48AM EBRAHIM ALSAADI MAR 23, 2021 03:21PM Marah Eyad al sayad Ahmad ‫)ﺗﺎﺳﻊ )ج‬  ‫ﺑﺮاءه ﻣﺤﻤﺪ‬ ‫ﺗﺎﺳﻊ د‬ ANONYMOUS MAR 23, 2021 09:42PM ‫راﻧﯿﺎ ﺑﺎﺳﻢ اﻟﻨﻮﺑﺎﻧﻲ ﺗﺎﺳﻊ د‬

REMAS SHADI MAR 24, 2021 10:45AM SHAHD ABU RMALA MAR 24, 2021 01:37PM Shahd Abu Rmala 9D

Suzan mohanad  ������ . \"‫ﺗﺎﺳﻊ \"ج‬ ANONYMOUS MAR 24, 2021 10:52PM

SALAMKHALDOUN673 MAR 26, 2021 03:07PM ANONYMOUS MAR 26, 2021 03:25PM  ‫ﺳﺠﻰ ﺧﻠﺪون ﻣﺤﻤﺪ ﻋﻠﻲ‬ Toqa Faraj 

ANONYMOUS MAR 27, 2021 08:36PM Ruba Ahmad Hashem Halimah FARAH EMAD MAR 28, 2021 01:19PM ‫ﻓرح ﻋﻣﺎد اﻟﺧواﻟدة ﻣن اﻟﺗﺎﺳﻊ ج‬

ANONYMOUS MAR 28, 2021 02:27PM Activity 2 Lana Bassam ‫اﻟﺘﺎﺳﻊ د‬  AMANI SULEIMAN MAR 15, 2021 09:53PM  ‫اﺳﻔﺔ ﻛﺘﺘﯿﺮر ﻋﻦ اﻟﺘﺄﺧﯿﺮ‬  2. I will choose one of the pulleys applications from the context and explain orally how it works to a family member or a friend. 3. I will give examples of 3 English proverbs and explain them on a piece of paper. ........................................................................................................................ ............................................................ AMANI SULEIMAN MAR 15, 2021 09:53PM Activities Activities.mp3 0:30 audio PADLET DRIVE AMANI SULEIMAN MAR 15, 2021 09:53PM

Resources English_Proverbs.mp4 1:28 video PADLET DRIVE SHAHD ABU RMALA MAR 24, 2021 03:10PM Shahd Abu Rmala 9D SHAHD ABU RMALA MAR 24, 2021 03:11PM Shahd Abu Rmala 9D

Exercise machines: Pulleys are used in most weightlifting machines, and the aim of their use is to control the angle at which weights are lifted while maintaining the same weights as those used on site, making the use of weights safer and more effective for club-goers ANONYMOUS MAR 26, 2021 04:19PM Toqa Faraj  ANONYMOUS MAR 26, 2021 03:46PM Toqa Faraj

ANONYMOUS MAR 26, 2021 04:34PM Toqa Faraj  Conciliation is the matter of the law. (‫)اﻟﺼﻠﺢ ﺳﯿﺪ اﻻﺣﻜﺎم‬ Do as you would be done.  (‫) ﻋﺎﻣﻞ اﻟﻨﺎس ﻛﻤﺎ ﺗﺤﺐ ان ﯾﻌﺎﻣﻠﻮك‬ Cut your coat according to your cloth. ( ‫)ﻋﻠﻰ ﻗﺪ ﻟﺤﺎﻓﻚ ﻣﺪ رﺟﻠﯿﻚ‬ ANONYMOUS MAR 27, 2021 09:30PM asmaa mahmoud isaa ( 9D) The pulley is mainly used in cranes, and the wells were provided with a simple system of rollers to help draw water from the well, and the pulleys in wells are a wheel on which a threaded chain or rope is xed, with a bucket attached to one or both ends of the rope, and the pulley helps in drawing operations with the bulldozers ANONYMOUS MAR 27, 2021 11:10AM asmaa mahmoud 9D . leopards can not change their spots      ‫اﻟﻨﻤﻮر ﻻ ﺗﺴﺘﻄﯿﻊ ﺗﻐﯿﯿﺮ ﺑﻘﻌﮭﺎ‬

  . let bygones be bygones         ‫دع ﻣﺎ ﻣﺮ ﯾﻤﺮ‬ . All is not gold that glitt ers        ً‫ﻟﯿﺲ ﻛﻞ ﻣﺎ ﯾﻠﻤﻊ ذھﺒﺎ‬ . Do as you would be done by      ‫ﻋﺎﻣﻞ ﻛﻤﺎ ﺗﺤﺐ أن ﺗﻌﺎﻣﻞ‬ . He is rich that is satisfed       ‫اﻟﻘﻨﺎﻋﺔ ﻛﻨﺰ ﻛﺎ ٍف‬ . A long tongue is a sign of short hand     ‫اﻟﻠﺴﺎن اﻟﻄﻮﯾﻞ إﺷﺎرة إﻟﻰ ﻗﺼﺮ اﻟﯿﺪ‬ ANONYMOUS MAR 27, 2021 06:50PM Salam Amjad Abu.Shmias Translate from the meter his words less respect(‫)ﻣﻦ ﻛﺜﺮ ﻛﻼﻣﮫ ﻗﻞ ﻣﻘﺪاره‬ Talk alot and consider themselves the center of world,so all the talk is about thier lives,thier problems and what  they going through. Live the Month of Rajab you will see wonders(‫)ﻋﯿﺶ رﺟﺐ ﺑﻌﺪ رﺟﺐ ﻓﺴﯿﻈﮭﺮ ﻟﻚ اﻟﻌﺠﺐ‬ ������������Live Rajab after Rajab,the wonder will appear to you Good words are less and humiliation(‫)ﺧﯿﺮ اﻟﻜﻼم ﻣﺎ ﻗﻞ وذل‬ ������������Talk too much without asking ANONYMOUS MAR 27, 2021 08:38PM Ruba Ahmad Hasham Halimah FARAH EMAD MAR 28, 2021 01:16PM ‫ﻓرح ﻋﻣﺎد اﻟﺧواﻟدة ﻣن اﻟﺗﺎﺳﻊ ج‬ Wells use the pulley system to lift the pucket out of the well. This device is mainly used with hand-dug wells. A bucket on a rope is lowered into the water. When the bucket hits the water it dips and lls, and is pulled up with the rope FARAH EMAD MAR 28, 2021 01:56PM ‫ﻓرح ﻋﻣﺎد اﻟﺧواﻟدة ﻣن اﻟﺗﺎﺳﻊ ج‬

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