السلام عليكم اهلا وسهلا بكم فى شرح مادة الساينس للصف الثالث الإعدادى لغات الترم الأول مع مستر أحمد حفني Ahmed Hefny .للحجز فى الاون لاين تواصل عالرق ده
اول فيديو للصف الثالث الاعدادي لغات
1-SCIENCE | Prep.3 | Motion in One Direction #1 | Unit 1 - Lesson 1.part 1
و افضل شرح لمادة الساينس
في الفيديو دة هنتكلم عن
In This part we will study :
The motion
It is the change of object's location as time passes according to the location of another object.
The two factors necessary for the description of motion
1- The distance that covered by the motion
2- The time taken by the moving body to cover this distance
Speed
It is a physical quantity which is used to describe and measure the motion of object
Speed
It is the distance moved through a unit time.
The measuring unit of Speed = m/s = km/h.
Give Reason for …
1. The object's speed increases as time decreases to cover the same distance
Because V=d/t so the speed of object is inversely proportional with time

2. G.R. the object's speed increases by increasing the covered distance at constant time
Because V=d/t so the speed of object is directly proportional with covered distance
Mr/ Ahmed Hefny