When a Material Is Found to Have No Definite Volume

question 43

Multiple Choice

When a material is found to have no definite volume and no definite shape, what is the phase of the material?

• A) Gas
• B) Liquid
• C) Plasma
• D) Solid

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Definitions:

Activation-Synthesis Theory

The idea that dreams are the result of the brain’s attempts to make sense of random brain activity by combining the activity with stored memories.

Stage 2 Sleep

Second stage of sleep, where a person is truly asleep; EEGs show K-complexes and sleep spindles, and there is much less conscious awareness of both the external world and inner mental activity.

K-Complexes

K-Complexes are a type of brainwave pattern seen on an EEG, typically associated with stage 2 sleep, characterized by a brief upsurge in brain activity.

EEGs

Short for Electroencephalograms, these are tests that measure electrical activity in the brain.