The Mechanical Advantage of Any Machine Is

question 22

Multiple Choice

The mechanical advantage of any machine is:

• A)the efficiency of the machine
• B)the work done by the machine
• C)the ratio of the work done by the machine to the work expended on it
• D)the ratio of the force exerted by the machine to the force applied to it
• E)the ratio of the force applied to the machine to the force exerted by it

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Definitions:

Cremaster Muscle

A muscle that covers the testis and spermatic cord, involved in the reflex action of moving the testis closer to the body in response to cold or fear.

Vas Deferens

The duct that conveys sperm from the testicle to the urethra.

Spermatic Cord

A bundle of fibers and tissues in males that includes the vas deferens, blood vessels, nerves, and the cremaster muscle, responsible for supporting the testes.

Inguinal Canal

A passage in the lower anterior abdominal wall which in men, contains the spermatic cord and in women, the round ligament of uterus.