لقراءة النسخة العربية أنقر هنا.
This experiment shows that, when placed in a liquid, the object displaces a quantity of liquid of mass that is equal to the mass of the object itself. Moreover, the volume of the displaced liquid is equal to the volume of the immersed part of the object.
توضح هذه التجربة أنه عند انعدام مقاومة الهواء، يصل جسمان يسقطان بحرية من نفس الارتفاع إلى الأرض في نفس اللحظة. يكتسب كلا الجسمين نفس السرعة أثناء السقوط، مما يثبت أنهما يختبران نفس التسارع – تسارع السقوط الحر. تشرح التجربة سبب رؤيتنا للأجسام الثقيلة تسقط أسرع من الأجسام الخفيفة بسبب تأثيرات مقاومة الهواء.
I created this course and published it on my Moodle platform. Each module is comprised of SCORM package and a quiz, with an unofficial completion certificate as a template that can be costumed to the specifications of your organization. The course is tracked, and you must successfully complete each chapter to unlock the next one. The course is fully learner-centered.
توضح هذه التجربة مبدأ أرخميدس والطفو. عند وضع جسم في سائل، يزيح كمية من السائل تساوي كتلتها كتلة الجسم نفسه. كما أن حجم السائل المُزاح يساوي حجم الجزء المغمور من الجسم. عرض أساسي لمبادئ ميكانيكا الموائع والإزاحة.
This zero-gravity experiment aboard a space shuttle demonstrates Newton’s second law. With no gravitational force, an astronaut applies the same force to balls of different masses. The lighter ball accelerates more than the heavier one, proving the inverse relationship between mass and acceleration when force is constant (F=ma). A perfect demonstration of fundamental physics principles in microgravity conditions.
Elementary math teachers know the importance of this model in teaching the concept of applying distributive property in area model.
The idea is to break one large area (which represents the product of two numbers) into several pieces (products of smaller numbers), then to find the areas of the pieces individually, and finally add to get the area of the whole (the product of the given numbers).
Using this simulation, you can experience the phenomenon of charging a metallic ball by induction in the first stage and charging the ball by contact in the second stage after the charged rod touches the ball. The displayed charges are for an illustrational purpose, and they are not seen in reality. You can disable the display of charges on the rod and on the ball.
In this simulation, you can try two situations, one in which the rod is positively charged and another in which the rod is negatively charged, and you will see that the two situations result in the same observation.