The Quantity 8

question 16

Multiple Choice

The quantity 8.7 × 10⁵ g expressed in standard decimal notation is:

• A)0.000087 g
• B)870.000 g
• C)0.0000087 g
• D)870,000 g

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Definitions:

Sleep Cycle

A progression through various stages of NREM and REM sleep that repeats several times throughout a typical night's rest.

Theta Waves

Brainwave patterns associated with deep relaxation, meditation, and the early stages of sleep, typically in the frequency range of 4–7 Hz.

EEGs

A test that detects electrical activity in the brain using small, metal discs attached to the scalp.

Paradoxical Sleep

Another term for REM (Rapid Eye Movement) sleep, a phase of sleep characterized by rapid eye movements, more dreaming, and bodily movement.