Many Physical Quantities Are Connected by Inverse Square Laws,that Is,by

question 5

Multiple Choice

Many physical quantities are connected by inverse square laws,that is,by power functions of the form In particular,the illumination of an object by a light source is inversely proportional to the square of the distance from the source.Suppose that after dark you are in a room with just one lamp and you are trying to read a book.The light is too dim and so you move the distance to the lamp.How much brighter is the light?

• A) times
• B) times
• C) times
• D) times
• E) times

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Definitions:

ATP

Adenosine triphosphate, a molecule that carries energy within cells for metabolism.

Chemiosmosis

The movement of ions across a selectively permeable membrane, down their electrochemical gradient, which is used in cellular respiration and photosynthesis to generate ATP.

Oxidative Phosphorylation

A metabolic process that produces ATP by transferring electrons from NADH and FADH2 to oxygen via a series of electron carriers.

Glycolysis

Glycolysis is a metabolic pathway that breaks down glucose into pyruvate, generating small amounts of energy in the form of ATP.