A Skydiver Falls Towards the Earth

question 1

Multiple Choice

A skydiver falls towards the Earth.The attraction of the Earth on the diver pulls the diver down.What is the reaction to this force?

• A)air resistance the diver encounters while falling
• B)water resistance that will soon act upward on the diver
• C)the attraction to the planets,stars,and every particle in the universe
• D)all of these
• E)none of these

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Definitions:

Contraction of the Uterus

The contraction of the uterus involves muscle fibers in the uterus contracting, playing a key role during childbirth to help deliver the baby, and during the menstrual cycle to expel the lining.

Oxytocin

A hormone and neurotransmitter involved in childbirth and lactation, also playing a role in social bonding and trust.

Prostaglandins

A group of physiologically active lipid compounds having diverse hormone-like effects, such as regulating inflammation and body temperature.

Cortisol

A steroid hormone, secreted by the adrenal cortex, that helps the body adjust to long-term stress; stimulates conversion of other nutrients to glucose in the liver, resulting in increased blood glucose concentration.