لقراءة النسخة العربية أنقر هنا.
When you feel your body is leaning forward when the car is braking, or when your body leans backward when the car takes off, you are experiencing a property of your body that is called “inertia”. The greater the mass of your body, the more you feel this effect.
Inertia is defined as the resistance of the body to any change in its velocity. This includes changes to the body’s speed or direction of motion.
This interactive wave interference simulation demonstrates the fundamental principles of wave superposition using two sources. Users can adjust key parameters including wavelength, amplitude, phase difference, and source separation to observe how waves interact and produce complex interference patterns. The simulation features a real-time probe tool that displays individual wave amplitudes and their resultant superposition, showing constructive and destructive interference at different points in the field. The visual representation includes radiating wave fronts from both sources, with characteristic alternating bands of high and low amplitude clearly visible throughout the interference pattern.
With this comprehensive and realistic-like photoelectric effect experiment simulation, you will be able to illustrate the following:
The variations of the photocurrent versus potential.
The variations of the photocurrent versus light intensity.
The variation of the kinetic energy of the ejected electrons versus the incident light frequency.
It comes with a graph where you can trace each type of variation as you vary the parameters of the experiment.
Plus, you can experiment and discover more with this simulation.
ينص قانون نيوتن الثاني على أن القوة الصافية والتسارع متناسبان طردياً، وثابت التناسب هو الكتلة (القوة = الكتلة × التسارع). تستخدم هذه التجربة سنداناً مدعوماً بضغط الهواء لإظهار أنه حتى عندما يتم مقاومة الوزن، فإن الكتلة الضخمة للسندان لا تزال تتطلب قوة هائلة لتسريعه من السكون. توضيح قوي للعلاقة بين القوة والكتلة والتسارع.
This experiment demonstrates that in the absence of air resistance, two freely falling bodies released from the same height reach the ground simultaneously. Both objects gain the same speed during their fall, proving they experience the same acceleration – the acceleration due to gravity. The demonstration explains why we typically observe heavy objects falling faster than light objects due to air resistance effects.
With this rich simulation, you can visualize and measure the phase difference between two sound waves using two microphones connected to an oscilloscope. Moreover, you can determine the speed of sound in air by measuring the distance between the two microphones when their waveforms are in phase, taking into account the frequency of the sound wave that is controlled by the sine wave generator.
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.
