16. What type of instrument measures seismic waves?
A. Mercalli scale
B. Seismic scale
C. Seismogram
D. Seismometer
D?
D is right. :-)
Thank you,Ms.Sue!
You're welcome, Sarah.
Remember that -mometer means measure. Think of thermometer.
Yes, the correct answer is D. Seismometer.
A seismometer is an instrument used to measure seismic waves. It is designed to detect and record the vibrations caused by earthquakes. Seismometers work by using a suspended mass or a pendulum-like system that remains relatively stationary while the Earth moves beneath it. When an earthquake occurs, the ground shakes, and the suspended mass in the seismometer moves, too. This motion is then recorded and measured, generating data about the characteristics of the earthquake.
Seismographs, on the other hand, are instruments used to record the motion detected by seismometers. Seismograms are the graphical representation of the recorded data. Both seismographs and seismograms are related to seismometers, but they are not the instruments used to directly measure seismic waves. Instead, they are used in combination with seismometers to document and analyze the ground motion caused by earthquakes.