A seismograph measures how violent the earthquakes are. They have a pen hanging from the top and some paper rolled onto something like a tape on the bottom. When the earth shakes the pen moves.
seismographs
seismographs
seismographs
Triangulating seismographs
Seismographs are used to measure earthquakes, and how violent they are.
Scientists use seismographs.
they use seismographs to measure seismic waves
Scientists use seismographs to measure the magnitude of earthquakes. Seismographs detect the seismic waves generated by an earthquake, and the amplitude of these waves is used to calculate the earthquake's size. The most common scale used to measure earthquake size is the Richter scale or the moment magnitude scale.
Seismographs cannot measure volcanoes. When you research about seismographs, it may show thing about volcanoes. This is because right before a volcano erupts, it can cause little earthquakes and seismographs measure earthquakes!
No Seismographs measure things like earthquakes while odometers measure how far wheeled vehicles travel.
The instruments are seismographs or seismometers.
seismographs