In pulley wheel and axel topic tests question 5 why how does using more rope segments reduce energy use even though it was going upwards. Can you please explain more details of the segments.Thank you.

Good Question.
The fact that more rope segments on a movable pulley reduce the effort is used to arrive at the answer. You do not need to know why, for now. But, the same concept is present in the syllabus of higher classes and you will be studying them when you are able to solve the maths of that level.
Till then, Happy learning!