What Is the Major Factor Controlling How Levers Work

question 72

Multiple Choice

What is the major factor controlling how levers work?

• A) the difference in the positioning of the effort, load, and fulcrum
• B) the direction the load is being moved
• C) the structural characteristics of the muscles of the person using the lever
• D) the weight of the load

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Definitions:

Drive-Reduction

A psychological theory that posits the reduction of physiological needs drives behavior, aiming to reduce the state of tension or arousal caused by unmet needs.

Homeostasis

The process by which a living organism or cell maintains stable internal conditions despite changes in its external environment.

Set-Point Theory

The hypothesis that the body regulates its weight and energy levels around a specific baseline, determined by genetics and environmental factors.

Fat Cells

Also known as adipocytes, these cells store energy in the form of fat and play an important role in energy balance.