طلب للمساعدة

[ahmed_s27]

Motion: - is the change in the object position with the time, according to another object.

Speed: - is the distance moved in a unit time.

- Uniform speed: is the speed when the object covers equal distances in equal times.

Average speed: It is the total distance which covers by a moving bject over the total time.

Relative speed: is the speed of the moving bject according to an observer.