Is It Possible for a System to Have Negative Potential

question 51

Multiple Choice

Is it possible for a system to have negative potential energy?

• A) Yes, as long as the kinetic energy is positive.
• B) Yes, as long as the total energy is positive.
• C) Yes, since the choice of the zero of potential energy is arbitrary.
• D) No, because the kinetic energy of a system must equal its potential energy.
• E) No, because this would have no physical meaning.

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Definitions:

Leaching

The process by which soluble materials are washed out from soil or wastes, often leading to contamination of waterways.

Nitrate Ions

An anionic form of nitrogen (NO3-) found in soil and water, often resulting from agricultural runoff, and crucial to the nitrogen cycle.

Phosphorus Reservoirs

Natural or artificial storage places for phosphorus, an essential nutrient for plants and animals.

Nitrogen Fixation

Nitrogen fixation is a process by which nitrogen gas from the atmosphere is converted into ammonia or related nitrogenous compounds in soil, making nitrogen accessible to living organisms.