A solid glass ball weighs 1 newton.One with twice the diameter weighs
A)1 N.
B)2 N.
C)3 N.
D)4 N.
E)more than 4 N.

Name: A solid glass ball weighs 1 newton.One with twice the diameter weighs A)1 N. B)2 N. C)3 N. D)4 N. E)more than 4 N.
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Question

Quizplus · Accepted Answer

The weight of the ball is proportional to its volume, which is proportional to the cube of its diameter. Doubling the diameter increases the volume (and thus the weight) by a factor of 2^3 = 8, so the new weight is 8 N, which is more than 4 N.

A Solid Glass Ball Weighs 1 Newton