This Fundamental Principle of Physics Is the Basis Behind the Effectiveness

question 29

Multiple Choice

This fundamental principle of physics is the basis behind the effectiveness of a seismometer.

• A) The change of momentum of a body is proportional to the impulse impressed on the body, and happens along the straight line on which that impulse is impressed.
• B) The mutual forces of action and reaction between two bodies are equal, opposite, and collinear.
• C) Every body persists in its state of being at rest or of moving uniformly straight forward, except insofar as it is compelled to change its state by force impressed.
• D) To every action there is always an equal and opposite reaction.

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Definitions:

External Acoustic Meatus

The external ear canal, a tube running from the outer ear to the middle ear.

Tympanic Membrane

A membrane forming part of the hearing system in the ear, functioning as the boundary between the external and middle ear.

Auricle

The outer part of the ear that collects sound waves; also known as the pinna.

Audiometer

An electronic device used to evaluate hearing loss by measuring a person’s ability to hear various sound frequencies.