If a Force on an Object Is Aimed in the Direction

question 57

Multiple Choice

If a force on an object is aimed in the direction of the object's velocity,the force does

• A)no work.
• B)positive work.
• C)negative work.
• D)any of the above.

---

Definitions:

Spermarche

The beginning of development of sperm in boys’ testicles at puberty, marking the onset of adolescent fertility.

Testes

The male reproductive glands that produce sperm and the hormone testosterone.

XY

A chromosomal designation for male sex in many organisms, including humans, where males typically have one X and one Y chromosome.

SRY Gene

A sex-determining gene on the Y chromosome that triggers the development of male anatomical features.