Dc3-3

  • April 2020
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‫اﻟﻤﺪرﺳﺔ اﻹﻋﺪادﻳﺔ ‪ :‬زاوﻳﺔ ﻗﻨﻄﺶ‬ ‫اﻷﺳﺘﺎذ ‪ :‬ﻋﻴﺴﻰ اﻟﺴﻮﻳﺴﻰ‬ ‫اﻹﺳﻢ واﻟﻠﻘﺐ‬

‫ﻓﺮض ﻣﺮاﻗﺒﺔﻋﺪد‪3‬‬ ‫ﻓﻲ اﻟﻌﻠﻮم اﻟﻔﻴﺰﻳﺎﺋﻴﺔ‬

‫‪...............................................................‬رﻗﻢ‪..............‬‬

‫اﻟﻘﺴﻢ‪ 7 :‬أﺳﺎﺳﻲ‪1‬‬ ‫اﻟﺘﺎرﻳﺦ‪ 23 :‬أﻓﺮﻳﻞ ‪2005‬‬ ‫اﻟﺘﻮﻗﻴﺖ‪ 30 :‬دﻗﻴﻘﺔ‬

‫اﻟﻌﺪد‪............. /20 :‬‬ ‫اﻟﻨﻘﺎط‬

‫)‪9‬ﻧﻘﺎط (‬

‫ﺗﻤﺮﻳﻦ ﻋﺪد‪1‬‬ ‫‪ / 1‬أآﻤﻞ ﻓﺮاﻏ ﺎت اﻟﺒﻴﺎﻧ ﺎت اﻟﻤﻨﻘﻮﺻ ﺔ اﻟﺘﺎﻟﻴ ﺔ ﺑﻤ ﺎ ﻳﻨﺎﺳ ﺐ ﻣﻤ ﺎ ﻳﻠ ﻲ ]– ﻣﺨﺘﻠﻔ ﺎن– ﻣﺨﺘﻠﻔ ﺔ – ﺗﺠ ﺎذب ـ ـ ﻃﺒﻴﻌﻴ ﺔ – اﻷﻏ ﺮاض ‪-‬‬ ‫ﺗﻨﺎﻓﺮ‪ -‬ﻣﻐﻨﺎﻃﻴﺴﻴﺔ ‪ -‬ﻧﻮﻋﺎن ــ ﻣﻦ ﻧﻔﺲ اﻟﻨﻮع[‬ ‫‪* .1‬ﻳﻮﺟﺪ‪...........................‬ﻣﻦ اﻟﻤﻐﺎﻧﻂ‪.‬‬ ‫ ﻣﻐﺎﻧﻂ‪....................‬ﻋﻠﻰ ﺷﻜﻞ ﺣﺠﺎرة‪..........................‬‬‫‪ -‬ﻣﻐﺎﻧﻂ اﺻﻄﻨﺎﻋﻴﺔ‪.......................‬اﻷﺷﻜﺎل وﻣﺘﻌﺪدة‪...........................‬‬

‫‪4.5‬‬

‫‪ * .2‬اﻟﺘﻔﺎﻋﻼت اﻟﻤﻐﻨﺎﻃﻴﺴﻴﺔ ﻧﻮﻋﺎن ‪.....................‬أو‪.........................‬‬ ‫‪-‬ﻳﺘﻨﺎﻓﺮﻗﻄﺒﺎن ‪.......................................‬وﻳﺘﺠﺎذب ﻗﻄﺒﺎن ‪..............................................‬‬

‫‪ /2‬وﺿﻌﻨﺎ ﻗﻀﻴﺐ ﻣﻤﻐﻨﻂ ﺗﺤﺖ ﻗﻄﻌﺔ ﺑﻠﻮرﻳﺔ ﺛﻢ ﻗﻤﻨﺎ‬ ‫ش ﺑﺮادة اﻟﺤﺪﻳﺪ ﻓﻮق هﺬا اﻟﺒﻠﻮر ﻓﺘﺤﺼﻠﻨﺎ ﻋﻠﻰ‬ ‫ﺑﺮ ّ‬ ‫اﻟﺸﻜﻞ اﻟﺘﺎﻟﻲ‬ ‫أ‪ /‬ﻣﺎذا ﺗﺴﻤﻰ اﻟﻤﻨﻄﻘﺔ اﻟﺘﻲ ﺗﺘﻮاﺟﺪ ﺑﻬﺎ ﺗﻠﻚ اﻟﺨﻄﻮط‪ ،‬اﻟﺤﻘﻞ اﻟﻤﻐﻨﺎﻃﻴﺴﻲ أم اﻟﻄﻴﻒ اﻟﻤﻐﻨﺎﻃﻴﺴﻲ ؟‬ ‫‪......................................................................................................................................................‬‬

‫‪1‬‬

‫ب‪ /‬ﻣﺎذا ﻳﺴﻤﻰ آﻞ ﺧﻂ ﻣﻦ اﻟﺨﻄﻮط اﻟﺘﻲ رﺳﻤﺘﻬﺎ ﺑﺮادة اﻟﺤﺪﻳﺪ أﺛﻨﺎء ﻧﺜﺮهﺎ‪ ،‬اﻟﺤﻘﻞ اﻟﻤﻐﻨﺎﻃﻴﺴﻲ أم اﻟﻄﻴﻒ اﻟﻤﻐﻨﺎﻃﻴﺴﻲ؟‬ ‫‪.................................................................................................................................................................‬‬

‫‪1‬‬

‫‪/3‬ﺑﺎﻻﻋﺘﻤﺎد ﻋﻠﻰ ﻣﺎ ﻗﻤﺖ ﺑﻪ ﻣﻦ‬ ‫ﺗﺠﺎرب ﻓﻲ اﻟﻘﺴﻢ وﺑﺎﻻﺳﺘﻌﺎﻧﺔ‬ ‫ﺑﺎﻟﻮﺿﻌﻴﺔ ‪ ،1‬ارﺳﻢ اﺗﺠﺎﻩ‬ ‫اﻹﺑﺮةاﻟﻤﻤﻐﻨﻄﺔ ﻓﻲ اﻟﻮﺿﻌﻴﺎت‬ ‫)‪5–4–3–2‬و‪(6‬‬

‫‪2.5‬‬

‫ﺗﻤﺮﻳﻦ ﻋﺪد‪2‬‬ ‫‪ /1‬ﺗﺄﻣﻞ اﻟﺘﺠﺮﺑﺔ اﻟﺘﺎﻟﻴﺔ‬

‫)‪11‬ﻧﻘﻄﺔ (‬

‫ﻣﻐﻨﻂ‬ ‫ﺣﺪﻳﺪ‬ ‫ﺻﻠﺐ‬

‫ﺣﺪﻳﺪ ﻟﻴﻦ‬ ‫ﺑﺮادة اﻟﺤﺪﻳﺪ‬

‫أ‪ /‬ﻣﺎهﻮ ﻧﻮع اﻟــﺘــﻤﻐـــﻨﻂ اﻟﺬي ﺗﻤﺜﻠﻪ هﺬﻩ اﻟﺘﺠﺮﺑﺔ هﻞ هﻮ ﺑﺎﻹﺣـــﺘﻜـــﺎك أم ﺑﺎﻟﺘـــــﺄﺛـــﻴـــﺮ؟‬

‫‪1‬‬

‫‪...........................................................................................................................................................‬‬ ‫ب‪ /‬إﻋﺘﻤﺎدا ﻋﻠﻰ اﻟﺘّﺠﺮﺑﺔ ﺑﻴّﻦ ﺧﺎﺻﻴّﺔ ﺗﻤﻐﻨﻂ اﻟﺤﺪﻳﺪ اﻟﺼﻠﺐ‪ ،‬هﻞ هﻮ ﺗﻤﻐﻨﻂ وﻗﺘﻲ أم داﺋﻢ؟‬ ‫‪........................................................................................................................................................‬‬

‫‪1‬‬

‫ج‪ /‬إﻋﺘﻤﺎدا ﻋﻠﻰ اﻟﺘّﺠﺮﺑﺔ ﺑﻴّﻦ ﺧﺎﺻﻴّﺔ ﺗﻤﻐﻨﻂ اﻟﺤﺪﻳﺪ اﻟﻠﻴّﻦ‪،‬هﻞ هﻮ ﺗﻤﻐﻨﻂ وﻗﺘﻲ أم داﺋﻢ؟‬ ‫‪..........................................................................................................................................................‬‬ ‫‪ /2‬ﺻﻨﻒ هﺬﻩ اﻟﻤﻮاد ﻓﻲ اﻟﺠﺪول اﻟﺘﺎﻟﻲ ] اﻟﺤﺪﻳﺪ اﻟﻠﻴﻦ ـــ اﻟﺒﻼﺳﺘﻴﻚ ـــ اﻟﻨﺤﺎس ـــ اﻟﺤﺪﻳﺪ اﻟﺼﻠﺐ ـــ ﻗﻄﻊ ﻧﻘﻮد ﺗﻮﻧﺴﻴﺔــ‬

‫‪1‬‬

‫اﻟﻨﻴﻜﻞ [‬ ‫ﻣﻮاد ﻻ ﻳﺠﺬﺑﻬﺎ اﻟﻤﻐﻨﻂ‬ ‫ﻣﻮاد ﻳﺠﺬﺑﻬﺎ اﻟﻤﻐﻨﻂ‬ ‫‪....................................................................‬‬ ‫‪.............................................................‬‬ ‫‪..................................................................‬‬ ‫‪.................................................................‬‬ ‫‪................................................................‬‬ ‫‪...............................................................‬‬ ‫ﻞ ﻣﻐﻨﻂ ﻗﻄﺒﻴﻦ‪ .‬وﻗﻤﻨﺎ ﺑﺘﻘﺮﻳﺐ اﻟﻤﻐﺎﻧﻂ ﻟﺒﻌﻀﻬﺎ‪ .‬ﻓﺤﺼﻞ ﺑﻴﻨﻬﺎ‪:‬‬ ‫‪ /3‬ﻟﺪﻳﻨﺎ ﺛﻼﺛﺔ ﻣﻐﺎﻧﻂ‪ ،‬ﻟﻜ ّ‬ ‫'‪A‬‬

‫‪B A‬‬ ‫ﺗﺠـــﺎذب‬

‫‪A‬‬

‫’‪B‬‬

‫'‪C‬‬

‫’‪A‬‬

‫‪3‬‬

‫‪C‬‬

‫ﺗﻨﺎﻓـــﺮ‬

‫أ‪ /‬هﻞ اﻟﻘﻄﺒﻴﻦ ‪ A‬و‪ B‬ﻣﻦ ﻧﻔﺲ اﻟﻨّﻮع أم ﻣﺨﺘﻠﻔﻴﻦ ؟‪.‬‬ ‫‪.............................................................................................................................................................‬‬

‫‪1‬‬

‫ب‪ /‬هﻞ اﻟﻘﻄﺒﻴﻦ ’‪ A‬و'‪ C‬ﻣﻦ ﻧﻔﺲ اﻟﻨّﻮع أم ﻣﺨﺘﻠﻔﻴﻦ ؟‬ ‫‪............................................................................................................................................................‬‬

‫‪1‬‬

‫ج‪ /‬أآﻤﻞ اﻟﺠﺪول اﻟﺘﺎﻟﻲ ﺑـــــ ﺗﺠﺎذب أو ﺗﻨﺎﻓﺮ ‪.‬‬ ‫اﻟﻘﻄﺐ‬

‫‪B‬‬

‫’‪B‬‬

‫‪C‬‬

‫’‪C‬‬

‫‪A‬‬

‫ﺗﺠﺎذب‬

‫‪.............‬‬

‫‪.............‬‬

‫‪..............‬‬

‫’‪A‬‬

‫‪...............‬‬

‫‪..............‬‬

‫‪...............‬‬

‫ﺗﻨﺎﻓﺮ‬

‫‪3‬‬