Question

Force and Work Unit Test
9 of 129 of 12 Items














Question
Use the table to answer the question.

Machine Output Work (J) Input Work (J)
A 750 1,500
B 1,000 4,000
C 450 600
D 3,000 5,000
Which machine has the highest efficiency?

machine A

machine D

machine B

machine C

Answer 1

machine A