A Disc Rotates Clockwise in the Plane of the Page

question 9

Multiple Choice

A disc rotates clockwise in the plane of the page.What is the direction of the angular momentum vector?

• A)clockwise
• B)counterclockwise
• C)into the page
• D)out of the page
• E)angular momentum has no direction

---

Definitions:

Optic Chiasm

Junction of the optic nerves, one from each eye, at which the axons from the nasal halves of the retinas cross to the brain’s opposite side.

Hypothalamus

A region of the brain that regulates vital bodily functions, including temperature, hunger, thirst, fatigue, sleep, and circadian rhythms.

Sleep State

A natural, reversible state of reduced responsiveness to external stimuli and relative inactivity, accompanied by complex physiological processes essential for health.

Brain-Wave Activity

The patterns of neuronal electrical oscillations in the brain, detectable with technologies like EEG, associated with different states of consciousness, sleep, and cognitive processes.