** نظام التعليق الهيدروليكي في السيارات يحول الطاقة الميكانيكية إلى طاقة حرارية.

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Presentation transcript:

** نظام التعليق الهيدروليكي في السيارات

يحول الطاقة الميكانيكية إلى طاقة حرارية

Motion and Force in Two Dimentions ** الفصـــــــل 2 : الحركة والقوى في بعدين Motion and Force in Two Dimentions

** نواتج التعلم : القسم 1-1 : يتعرف بعضاً من القوى الطبيعية كالوزن والقوة المتعامدة وقوة الاحتكاك والقوة المرونية. القسم 2-1 : يطبق القانون الثاني لنيوتن لدراسة حركة جسم أو مجموعة أجسام بتأثيرعدة قوى تؤثر في بعدين.

قوانيـن نيوتـن للحركـــة

نشاط 1 2 3 4

نشاط 1 أجيبي عن الأسئلة الآتية : 1- اذكري نص قانون نيوتن الأول . ....................................................................................................................................................................................................................................... 2- يتحقق الاتزان عندما يكون الجسم .................................... ..................................

نشاط 2 أجيبي عن الأسئلة الآتية : 1- اذكري نص قانون نيوتن الثاني: .......................................................................................................................................................................................................................................................... 2- تركت كرة كتلتها (2.0 kg) لتسقط من ارتفاع معين ، إذا كان مقدار مقاومة الهواء (5.0 N) . ارسمي مخطط القوى المؤثر على الكرة أثناء سقوطها. ما محصلة القوى المؤثرة عليها. ما عجلة الكرة .

نشاط 3 أجيبي عن الأسئلة الآتية : 1- اذكري نص قانون نيوتن الثالث ........................................................ 2- حدد على الشكل قوتي الفعل ورد الفعل. 3- هل يمكن حساب محصلة قوتي الفعل ورد الفعل ؟ و لماذا ؟ .......................................................................................................................................................................................

نشاط 4 أجيبي عن الأسئلة الآتية : 1- ما مقدار كتلتك : ................... 2- ما مقدار وزنك : .................... 3- إذا ذهبت في رحلة إلى قمة جبل فما التأثير الناتج على مقدار كل من كتلتك ، ووزنك . ................................................................... 4- لو أخذت معك خزانة حديدية مليئة بأغراضك الثمينة إلى سطح القمر ، فهل ستتمكنين من حملها بمفردك هناك ؟ ولماذا ؟ ........................................................................................................................................ نشاط 4

نشاط