Modern seismographs rely on_______ to record the ground motion from an earthquake.

Question

Quizplus · Accepted Answer

Modern seismographs rely on the principle of inertia to record the ground motion from an earthquake. A seismograph consists of a mass attached to a stationary base. When an earthquake occurs, the ground moves back and forth, but the mass stays in place due to its inertia. As the base moves with the ground motion, the mass remains stationary, causing the pen attached to it to record the motion on a drum or paper.

Modern Seismographs Rely On_______ to Record the Ground Motion from an Earthquake