بالعلم ترتقى الامم

مصر

بوسى
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دائرة كهربية تحتوى على مقاومة مقدارها 10\Omega موصلة على التوازى بفولتميتر مقاومة ملفه

\Omega50 وعندما مر بالدائرة تيار شدته الكلية 0.6A انحرف مؤشر الفولتميتر الى نهاية تدريجه

احسب قراءة الفولتميتر حينئذ واذا وصل ملف الفولتميتر بعد ذلك على التوالى مع مقاومة مقدارها

4950\Omega احسب اقصى فرق جهد يمكن ان يقيسه الفولتميتر فى هذه الحالة

emy
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The story ( the Iron man )
Answer the following questions:

1- What did the birds find on the beach?

2- Who saw the Iron man first?

3- The farmers drive ( cars – bikes - tractors– buses ) and use them on a farm

4- A ( tractor – deep – cliff – trap ) is averyhigh ground near the sea.

emy
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6 - Write four sentences about ( The Ancient Egyptians ).

( invented – ink – papyrus – built – lighthouse )

emy
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5 - Read and correct the underlined --

1- I was very ill last week, but I fall much better now.

2- What invented paper ?

3- Our grandpa always walks more slow than our father.

emy
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4- Choose the correct answer:-

1- Nabil can’t write the letter. His pen is out of ( paper - salt - ink - papyrus )

2- ( How - Where – When - Who ) heavy is the bag ?

3- The ancient Egyptians built the ( pyramid- lighthouse - palaces – flats ) in Alexandria.

4- My grandfather lives ( much – many – most – more) comfortably in our village than in Cairo.

5- How often ( you go – you will go – you went - doyou go) to the club?

6- is ninety ( kilograms – centimetres – kilometres grams) from our town.

7- Ayman came back ( safety – safe – safely – a safe ) from Syria.

8- The ancient Egyptians invented ink and ( papyrus - TVs - computers – internet )

بوسى
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سلك معزول قطره 0.2 لف حول ساق حديد نفاذيتها 2\pi\times10-3\ web\ \ A.m بحيث تكون

اللفات متماسة معا على طول الساق فاذا مر بها تيار شدته 5A احسب كثافة الفيض المغناطيسى

emy
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3-Read the following, then answer.

One day, Sara went for a walk in the park. Suddenly she saw a huge cat which was smiling and looking at her .Sara was frightened and ran away from the cat quickly , but the cat chased her. Sara ran behind a tree which had a bin next to it .She picked up the bin and hit the cat hard. But the cat didn’t stop chasing her. Suddenly Sara saw a tapwith a hose on it .She sprayed the cat with water in its face , so the cat ran away .Sara was smiling happily , but she was in her bedroom.It was only a dream.

Answer the following question:

1-Did Sara really saw the cat? Why?

2-What was smiling and looking at Sara ??

( Choose the correct answer:

3-Sara saw a tap with a (nose – hose- eat - mouth).

4-There was a (flower- hen- mouse – bin ) next to a tree.

5- When Sara saw the huge cat, she was ( surmised- frightened – happy - pleased ).

emy
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2 ) Supply the missing parts in these mini-dialogue:

1- Sara: Where was the light house found?

Amira:………………………………………..

2- Ahmed:………………………………………………….?

The teacher: The ancient Egyptians used it for writing.

emy
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1- Finish the following dialogue with one word:

Mary : What were the -------------- Egyptian famous for?

Nada : They were famous for --------------

Mary : ---------- did they build the lighthouse?

Nada : They built the light house in -------------

بوسى
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جلفانو متر يمر بة تيار شدتة A 0.02 لينحرف مؤشرة الى نهاية التدريج وعندئذ يكون الفرق فى الجهد بين طرفية

5V احسب :

ا- قيمة المقاومة المضاعفة للجهد التى تجعله صالحا لقياس فرق جهد قدره 150V

ب- مقاومة الجلفانومتر