Given a Potential Energy Function U(x), the Corresponding Force

question 24

Multiple Choice

Given a potential energy function U(x) , the corresponding force is in the positive x direction if:

• A) U is positive
• B) U is negative
• C) U is an increasing function of x
• D) U is a decreasing function of x
• E) it is impossible to obtain the direction of from U

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Definitions:

Psychoactive Drug

A chemical substance that affects the mind, mood, or behavior when taken.

Stimulant

A substance that raises levels of physiological or nervous activity in the body, increasing alertness, attention, and energy.

Hallucinogenic

Relating to substances that cause hallucinations, altering perception, thought, and feeling, and leading to experiences that differ from ordinary reality.

Depressant

A category of drugs that reduce the functioning of the central nervous system and produce feelings of relaxation and sedation.