نتيجة نيوتن لحركة خطية (Newton's Laws of Linear Motion)
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Questions and Answers

ميكانيكا هي دراسة الحركة والقوة والطاقة.

True

قانون نيوتن الأول ينص على أن القوة تساوي معدل تغيير الزخم.

False

ميكانيكا تنقسم إلى فرعين هما السينماتيكا والديناميكا.

True

القوة هي معدل تغيير الزخم حسب قانون نيوتن الثاني.

<p>True</p> Signup and view all the answers

القانون الثالث لنيوتن ينص على أن جسما في حالة راحة يبقى في حالة راحة.

<p>False</p> Signup and view all the answers

الديناميكا هي دراسة الحركة دون النظر في القوة.

<p>False</p> Signup and view all the answers

Study Notes

Mechanics

  • Study of motion, forces, and energy
  • Branch of physics that deals with the motion of objects
  • Divided into two branches:
    • Kinematics: description of motion without considering forces
    • Dynamics: study of motion considering forces and their effects

قوانين نيوتن في الحركة الخطية (Newton's Laws of Linear Motion)

Newton's First Law (Law of Inertia)

  • An object at rest will remain at rest, and an object in motion will continue to move with a constant velocity, unless acted upon by an external force
  • Inertia: tendency of an object to resist changes in its motion
  • Examples:
    • A car maintaining its velocity on a flat road
    • A ball continuing to roll on a frictionless surface

Newton's Second Law (Law of Acceleration)

  • Force (F) is equal to the rate of change of momentum (p) of an object
  • F = dp/dt
  • Acceleration (a) is directly proportional to the force (F) and inversely proportional to the mass (m) of an object
  • a = F/m

Newton's Third Law (Law of Action and Reaction)

  • For every action, there is an equal and opposite reaction
  • When two objects interact, they apply forces to one another that are equal in magnitude and opposite in direction
  • Examples:
    • When you push on a wall, the wall pushes back on you with the same force
    • When a car accelerates forward, the ground exerts an equal and opposite force backward on the car

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إختبار你的 فهم لقوانين نيوتن لحركة خطية، بما في ذلك قانون إنيرتيا، قانون التسارع، وقانون رد الفعل. اختبار معرفتك بالحركة الخطية والقوى والطاقة.

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