أسئلة عامة

[عبدالرحمن2010]

--------------------------------------------------------------------------------

أكمل العبارات التالية:
1- من مصادر التيار الكهربى ............ ، ............



1- الأعمدة الجافة ، المولدات الكهربية.



2- فى .............. تتحول الطاقة الكيميائية إلى طاقة كهربية
2- العمود الجاف


3- فى المولدات الكهربية تتحول الطاقة .............. إلى طاقة ..............
3- الحركية - كهربية


4- يتم تشغيل المولدات الكهربية باستخدام .......... أو ...........
4- الوقود - مساقط المياه.


5- التيار الكهربائى عبارة عن فيض من ............... ينتقل من خلال السلك
5- الشحنات الكهربية


6- يمر التيار الكهربائى عندما تكون الدائرة .............. وينقطع عندما تكون الدائرة ................
6- مغلقة - مفتوحة


7- يستدل على مرور تيار كهربائى فى دائرة مغلقة من .................
7- إضاءة المصباح


8- تحتوى الدائرة المغلقة على ............... و ...................
8- عمود جاف، مفتاح


9- يتكون العمود الجاف من علبة من ........... تسمى القطب ......... وساق من ........... يسمى القطب .............
9- الخارصين - السالب - الكربون - الموجب





10- يحاط الكربون فى العمود الجاف بمسحوق ..................





10- ثانى أكسيد المنجنيز


11- تتكون العجينة الموجودة فى العمود الجاف من ................ ، ................. ، ...................
11- كلوريد الأمونيوم، كلوريد الخارصين، النشا.


12- عندما يضعف التفاعل الكيميائى داخل العمود الجاف يؤدى إلى ............ حتى -----------
12- ضعف التيار الكهربائى - يتوقف


13- عندما يمر تيار كهربائى فى سلك فإنه يولد به ........
13- حرارة






15- يتكون المصباح الكهربى من انتفاخ ............. مملوء بغاز ................. ويصنع فتيل المصباح من .............. مثبت على سلكين من ..............

15- زجاجى - خامل - التنجستين - النحاس



16- عندما يمر التيار الكهربائى فى فتيل المصباح فإنه .............. ويشع ...............
16- يتوهج - ضوءًا


17- يصنع سلك التسخين فى المكواه من عنصرى ......... و ............. توضع بين صفائح رقيقة من .............
17- النيكل، الكروم - الميكا


18- يوجد بالمكواه ........... يعمل على ضبط درجة حرارة المكواه
18- منظم الحرارة


- المكواة والسخان دليل على وجود تأثير ........ للتيار الكهربائى.
19- حرارى
20- يعمل ............... على قطع التيار الكهربائى فى المنزل وذلك عند حدوث ...........
20- المنصهر الكهربائى - ماس كهربائى












21- يصنع سلك المنصهر من ............... لأن درجة انصهاره ...............


21- الرصاص - منخفضة



22- يحدث الماس الكهربائى نتيجة ............. الأسلاك المكشوفة ويؤدى ذلك إلى ............. التيار الكهربائى.
22- تلامس - انقطاع




2) أكتب المصطلح العلمى الدال على كل عبارة مما يأتى:
1- فيض من الشحنات الكهربائية تمر من أحد طرفى السلك إلى الطرف الآخر
التيار الكهربائى



2- مصدر كهربائى يعمل على تحويل الطاقة الكيميائية إلى طاقة كهربائية.
- العمود الجاف




3- مصدر كهربائى يعمل على تحويل الطاقة الحركية إلى طاقة كهربية باستخدام الوقود أو مساقط المياه.
- المولد الكهربائى


4- مسار مغلق تنتقل خلاله الشحنات الكهربائية.
الدائرة الكهربية



الدعاء فقط لاخى ولي هذا الذي اريدة
************************************************** *******************

[أبوبكر أحمد العملة]

الاخ والصديق الفاضل / مستر عبد الرحمن

مجهود متميز جداً جداً

بارك الله في عطائك المتجدد والدائم

لبوابة التعليم المصرى

وجزاك الله خيراً


مع خالص تقديرى لشخصكم الكريم
ابوبكر احمد العملة
عضو فريق مجتمع المعرفة بالمنتدى الكريم

[محمد حسن ضبعون]

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