https://padlet.com/tujaalessawi/xf8rgubzseg4gv14 en-us 2023-04-28 20:28:46 UTC 2023-05-02 17:06:01 UTC hello@padlet.com https://padlet-uploads.storage.googleapis.com/1370957339/9d958e5f35b26b442ec9619c4d09406e/16741933_303.jpg tujaalessawi https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219883 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 first 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.]]> 2023-04-28 20:28:46 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219883 tujaalessawi https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219885 2023-04-28 20:28:46 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219885 tujaalessawi https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219886 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]]> 2023-04-28 20:28:46 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219886 tujaalessawi https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219887 2023-04-28 20:28:46 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219887 tujaalessawi https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219888 2023-04-28 20:28:46 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219888 tujaalessawi https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219889 2023-04-28 20:28:46 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219889 tujaalessawi https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219890 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.
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............................................................]]> 2023-04-28 20:28:46 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219890 tujaalessawi https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219891 2023-04-28 20:28:46 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219891 tujaalessawi https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219893 Resources]]> 2023-04-28 20:28:46 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572219893 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572467187  Ninth A ]]> 2023-04-29 10:09:19 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572467187 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572467334 Sama Saeed Ahmad 
Ninth A]]> 2023-04-29 10:09:50 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572467334 enashourani11 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572509216 2023-04-29 12:25:41 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572509216 enashourani11 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572509458 2023-04-29 12:26:34 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572509458 zeenaalqodah https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572532214  Nour tamer mryyan]]> 2023-04-29 13:27:43 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572532214 zeenaalqodah https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572533070 Nour tamer mryyan
9a]]> 2023-04-29 13:28:47 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572533070 ly8838879 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572580168 Sara ali]]> 2023-04-29 15:13:13 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572580168 ly8838879 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572580541 2023-04-29 15:14:13 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572580541 kh830980 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572583599 Lara yaser]]> 2023-04-29 15:21:48 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2572583599 ramamegdady116 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2573010081 2023-04-30 16:09:50 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2573010081 ramamegdady116 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2573010436 2023-04-30 16:10:51 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2573010436 ramamegdady116 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2573010558 2023-04-30 16:11:10 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2573010558 tasneemalhasan6 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2573014902 2023-04-30 16:21:51 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2573014902 tasneemalhasan6 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2573035527 2023-04-30 17:10:34 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2573035527 https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2575510685 Layan khaled ]]> 2023-05-02 17:06:00 UTC https://padlet.com/tujaalessawi/xf8rgubzseg4gv14/wish/2575510685