Doubling Both Charges Changes the Potential Energy for a Pair

question 30

Multiple Choice

Doubling both charges changes the potential energy for a pair of point charges by a factor of

• A) 2.
• B) 4.
• C) 1/2.
• D) 1/4.
• E) 1 (no change).

---

Definitions:

Cardiovascular Fitness

The ability of the heart, blood cells, and lungs to supply oxygen-rich blood to the working muscle tissues and the ability of these muscles to use oxygen to produce energy for movement.

Immune Response

The body's defense mechanism against pathogens, involving the activation of immune cells and the production of antibodies.

Bacteria

Microscopic, single-celled organisms found everywhere in the environment, which can be beneficial, harmless, or pathogenic to humans and other life forms.

Foreign Substances

Substances that are not naturally found within an organism or system, often implying exposure to chemicals, toxins, or pathogens from external sources.