4 = Second Most Potential Energy, 2 = Fourth Most Potential Energy, 1 = Least Potential Energy, 3 = Third Most Potential Energy, 5 = Most Potential Energy.

Potential vs. Kinetic Energy

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟