A Windmill Building Challenge at a Science Competition

What change in decision would most likely increase the weight that the windmill could lift?

A) Make the fan blades smaller.
B) Make the arms of the windmill longer.
C) Make the arms of the windmill shorter.
D) Make the fan blades out of a lighter material.

Answer:

D

Explanation:

It is D - Make the fan blades out of a lighter material. I'm doing USA test prep and I got it right.

When participating in a windmill building challenge at a science competition, the decision to make the fan blades out of a lighter material would most likely increase the weight that the windmill could lift. By reducing the weight of the fan blades, the windmill can operate more efficiently and effectively, allowing it to lift heavier objects, such as a bucket filled with pennies, from a height of one meter in one minute.

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