بالعلم ترتقى الامم

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

emy
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9- The lighthouse was one of the …………. structures on earth.

a) longest b) highest c) tallest d) shortest

10-People worked ------------ to build the lighthouse.

a) hard b) hardly c) more hardly d) harden

11- The lighthouse ----------- in about 283 BCE.

a) open b) opens c) opening d) opened

12-The ancient Egyptians liked to -------------- beautifully.

a) put on b) wear c) dress d) dressing

13- They ---------------- the earliest glass beads in around 1500 BCE.

a) made b) making c) make d) to make

14-Toothpaste was another Egyptian ------------

a) discovery b) invention c) invent d) discover

15- We should train our children to use …………… to clean their teeth

a) beads b) cream c) toothpaste d) soap

16- The ancient Egyptian used ------------------- and plants to make toothpaste.

a) sugar b) glass c) water d) salt

17- We add salt to most of our --------------------------

a) tea b) coffee c) food d) juice

18- The sky at night is full of many …………

a) stars b) sun c) moon d) cloud

19- My friends like to dress ……………

a) beauty b) beautiful c) beautifully d) nice

20- How did the ancient Egyptian use to ----------- the days in a year?

a) measure b) measurement c) measuring d) measures

21- They invented the ------------- and taught us to tell the time.

a) days b) time c) calendar d) years

22- They taught us to tell the time -----------

a) accurate b) accurately c) accuracy d) correct

23-The ---------- invented paper in 140 BCE.

a) Japanese b) Egyptians c) Chinese d ) Turkish

24- The ancient Egyptians used ---------- for writing.

a) linen b) papyrus c) silk d) cotton

25-The ancient Egyptians invented pens and ------------

a) water b) ink c) tea d) coffee

26 – We use the ------------- to draw lines and measure things

a) scales b) glasses c) ruler d) stop watch

27- The scales are used to measure ---------------

a) length b) width c) height d ) weight

28- The lighthouse shines a light to ----------- at sea

a) ships b) cars c) planes d) lorries

29- I bought my sister some-------------- beads.

a) beautifully b) more beautiful c) beautiful d) most beautiful

30- In the past , people used water clocks to know what ------------ it was.

a) weight b) time c) distance d) measure-

emy
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Choose the correct answer :

1- Maha swims in the sea ---------------

a) slows b) slower c) slowly d) slowest

2- It rained ---------- yesterday.

a) heavier b) heaviest c) heavy d) heavily

3- Merna studies ------------ to succeed.

a) harden b) hardly c) hard d) hardy

4- Omar landed ------------ on the ground.

a) save b) safely c) safe d) safety

5- He played tennis ------------.

a) well b) bad c) worse d) good

6- The ancient Egyptians were the first ------------ many things.

a) invent b) to invent c) invented d) inventing

7- The lighthouse of Alexandria was ---------- the first lighthouse in the world

a) probably b) probable c) probability d) improbable.

8- The lighthouse was about 130 metres -----------

a) long b) high c) tall d) short

emy
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Correct the underlined words:

1- How high can a train go? It can go at 200 kilometres an hour.

2- Ahmed is old than Sara

3- The ancient Egyptian discovered the glass beads

بوسى
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احسب كثافة الفيض المغناطيسى عند مركز ملف دائرى يتكون من لفة واحدة نصف قطره 0.1

متر يمر به تيار شدته 10 امبير واحسب المسافة بين سلك مستقيم يمر به تيار كهربى شدته 10

امبير ايضا وبين نقطة تكون كثافة الفيض المغناطيسى الناتجة عندها نفس القيمة

بوسى
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جلفانومتر مقاومته 20 اوم يدخل ضمن دائرة مقاومتها 80 اوم وصل بنجزئ مقاومته 5 اوم ....

احسب النسبة بين شدتى التيار المار فى الجلفانومتر قبل وبعد توصيل المجزئ

بوسى
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ملف حلزونى عدد لفاته 500 وطوله 20cm ومقاومته \Omega\ 14.5 وصل طرفاه ببطارية قوتها

الدافعة الكهربية 1.5 V ومقاومتها الداخلية \Omega\ 0.5 اوجد كثافة الفيض المغناطيسى عند نقطة

داخله وتقع على محوره علما بان \left(4\pi\times10-7\ \ \ web\ / Am=\mu\right)