شرح ساينس الصف الثاني الاعدادي لغات - الفصل الدراسي الاول
شرح ساينس تانية اعدادي - ترم اول

لينك تحميل الملزمة
https://drive.google.com/file/d/1NVLQrmfYMD_fvQBGJNfAm0IC1QfqiZhM/view?usp=sharing


لينك تليجرام
https://t.me/mrahmedelbashagroup

in this lesson:
Newton's second law
Newton's second law explains the effect of the net force on changing the velocity of the object over time, as shown below:

The concept of acceleration

Acceleration (a)
The change in the velocity of the object per unit time.
Or
The rate of change of the velocity.

Newton's second law
If a net force (F) acts on an object of mass (m), it causes the object have an acceleration (a) in the same direction as the net force.


Safety precautions
When a car stops suddenly for any reason, the driver collides with the steering wheel or the windshield, according to Newton's first law (law of inertia), so to protect the driver from rushing forward, it is necessary to consider some safety precautions such as:

Newton's Third Law
For every action, there is an equal and opposite reaction.

بالتوفيق
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