Educational Technologist
In this experiment, the air cushion under the scooter assures that there is almost no friction, so the scooter is acted upon by the gravitational force (its weight) and the reaction of the track. Then we can say that the net force on the scooter is null.
Now when the scooter is at rest, it remains at rest. But when it is given a push and then is left to move on its own, it will keep moving at constant speed unless it hits the end of the track (a force stops it).
في هذه التجربة، ينعدم الاحتكاك تقريبا تحت السكوتربسبب الوسادة الهوائية، لذلك تتأثر السكوترفقط بقوة الجاذبية (وزنها) وبردة فعل السكة. فيمكننا القول أن القوة الصافية على السكوتر صفر.
فعندما يكون السكوتر في حالة سكون ، يبقى في حالة سكون. وعندما يتم دفعها ومن ثم تركها للتحرك من تلقاء نفسها، فإنها ستستمر في التحرك بسرعة ثابتة ما لم تصل إلى نهاية المسار (توقفه قوة خارجية).
A useful simulation for the students in their studies and for the physics teachers in their presentations of electricity lessons.
The simulation includes alternating generators (AC) and direct generators (DC).
In this simulation, the oscilloscope can display waves coming from generators similar to the real ones.
A new simulation, that simulates the free fall of an object (ball). This simulation gives the ability to measure the acceleration of gravity by taking successive shots of the falling object with recording the time of each shot and measuring the coordinate y for each shot. It also enables us to check the famous free fall equation:
y = (1/2) gt²
This is a new simulation of a rotating disk being illuminated by a stroboscope. You can control the speed of the disk and the frequency of the stroboscope, and see how the white spot on the disk appears. You can check all the cases of stationary appearance and the slow-motion appearance.