In the Laboratory,a Stick 1 M Long Is Pivoted at Various

question 65

Multiple Choice

In the laboratory,a stick 1 m long is pivoted at various points to illustrate the motion of a physical pendulum.A plot of the period versus the distance of the pivot point from the center of mass is shown.The data presented demonstrate which of the following?

• A)The motion of a pendulum is circular about the center of mass.
• B)The center of mass is at 0.4 m.
• C)The graph is meaningless in this form.
• D)There is a minimum period in the neighborhood of 1.5 s at a pivotal distance of approximately 0.4 m from the center of mass.
• E)The graph should be drawn as a straight line from A to C; point D is obviously wrong.

---

Definitions:

Physical Health

The state of one's body, including fitness level, absence of disease, and overall physical condition.

Depression

A psychological disorder defined by a continuous state of sadness or a disinterest in activities, leading to considerable dysfunction in everyday functioning.

Coronary Heart Disease

A condition characterized by the narrowing of the coronary arteries, which supply blood and oxygen to the heart, leading to potential heart attacks.

Psychological Disorders

Mental disorders characterized by dysfunctional thought, emotional, or behavior patterns that cause distress or impairment in functioning.