A Cork Floats on the Surface of an Incompressible Liquid

question 53

Multiple Choice

A cork floats on the surface of an incompressible liquid in a container exposed to atmospheric pressure.The container is then sealed and the air above the liquid is evacuated.The cork:

• A)sinks slightly
• B)rises slightly
• C)floats at the same height
• D)bobs up and down about its old position
• E)behaves erratically

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Definitions:

Circadian Rhythm

The inherent biological mechanism that controls the cycle of sleeping and waking, recurring approximately every 24 hours.

Phi Phenomenon

An optical illusion where stationary objects shown in rapid succession, such as flashing lights, appear to be in motion.

Manifest Content

In psychoanalytic theory, the actual literal content and storyline of a dream as remembered by the individual.

Activation-Synthesis Theory

A theory suggesting that dreams are the result of the cerebral cortex interpreting random signals from the brainstem during REM sleep.