ساينس الصف الثالث الاعدادي – الفصل الدراسي الاول ساينس تالتة اعدادي – ترم اول In This part we will study : Kinds of speed Regular (uniform) speed It is the change of an object position at equal distances at equal periods of time (whether the distance and time are short). What the meant by 1-An object moves at regular speed 400 km/h This means that the object covers 400 kilometer each 1 hour irregular non-uniform speed It is the change of an object position at unequal distances at equal periods of time. or It is the change of an object position at equal distances at unequal periods of time. Average Speed It is the total distance covered by the moving object divided by the total time taken to cover this distance. لمتابعة مستر احمد الباشا وكل ما يخص الساينس : جروب الفيس بوك http://bit.ly/2Of1mcN صفحة الفيس بوك http://bit.ly/2Gq5xMo بالتوفيق مستر احمد الباشا