How does a seismograph work
Answers
Answer:
Seismographs record seismic waves. They contain a weight and a pen attached to a spring (below).
The seismograph is bolted to the ground so during an earthquake it moves with the ground, whilst the weight and pen remain still. The pen moves across a rotating paper roll recording the seismic waves.
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✨✨✨Answer::
A seismograph is a device for measuring the movement of the earth, and consists of a ground- motion detection sensor, called a seismometer, coupled with a recording system. Seismographs operate on the principle of inertia. Modern research seismometers are electronic, and detect and record motions in all directions.
When earth vibrates, the vibrating rod of the seismograph starts vibrating. The pen attached to the vibrating rod records the seismic waves on a paper which moves under it. By studying these waves, scientists can construct a complete map of the earthquake.