Physical Science
posted by Mandi .
Hello, I need some help with the folling question...
I would say B OR C though I am not sure.
Thank You.
In a Practical Machine , the power output is _____ the power input .
A. Smaller than
B.Larger than
C.Equal Too
D.Multiplied By

The power output is ALWAYS smaller than the power input. The old saying goes that we can't get something for nothing. No machine is 100% efficient; there is always some energy lost to friction, heat, etc. There are some processes that come close to being 100%.
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