What is a seismometer and how does it work?
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What is a seismometer and how does it work?
A seismometer is a device that is sensitive to vibrations. It works on the principle of a pendulum: a heavy, inert mass with a certain resistance to movement (i.e. inertia) due to its weight is suspended from a frame by a spring that allows movement.
What is Richter scale and seismometer?
A seismograph is an instrument used to detect and record earthquakes. It is also known as a seismometer. It records the motion of the ground during a quake.
- The Richter scale is a numerical value used to measure the power or magnitude of earthquakes.
What is a seismometer quizlet?
A seismometer records the vibrations from earthquakes.
How does a seismometer work for earthquakes?
Seismometers allow us to detect and measure earthquakes by converting vibrations due to seismic waves into electrical signals, which we can then display as seismograms on a computer screen. Seismologists study earthquakes and can use this data to determine where and how big a particular earthquake is.
What is seismograph scale?
The Richter scale calculates an earthquake’s magnitude (size) from the amplitude of the earthquake’s largest seismic wave recorded by a seismograph.
How do seismographs and Richter scale work?
As the earthquake vibrates the seismograph, the pen moves up and down the paper on the rotating drum, creating readings and allowing scientists to attach corresponding Richter scale values to explain the data. The Richter scale is a logarithmic scale which means the number on the scale measure factors of ten.
What is the difference between a seismometer and a seismogram?
The terms seismograph and seismometer are often used interchangeably; however, whereas both devices may detect and measure seismic waves, only a seismograph possesses the capacity to record the phenomena. A record produced by a seismograph on a display screen or paper printout is called a seismogram.
What can a seismogram tell us about an earthquake?
Seismograms are used to determine the location and magnitude of earthquakes. An earthquake’s magnitude may be considered to vary as a function of the amount of energy released at the rupture point.
What is the difference between seismograph and seismometer?
A seismometer is the internal part of the seismograph, which may be a pendulum or a mass mounted on a spring; however, it is often used synonymously with “seismograph”. Seismographs are instruments used to record the motion of the ground during an earthquake.
What is a seismograph and a seismogram quizlet?
Seismographs are instruments located at or near the surface of the earth that records seismic waves. A seismogram is a tracing of earthquake motion and is created by a seismograph.
How do you read a seismograph earthquake?
The seismogram is “read” like a book, from left to right and top to bottom (this is the direction that time increases). As with a book, the right end of any horizontal line “connects” with the left end of the line below it. Each line represents 15 minutes of data; four lines per hour.
What is the purpose of seismograph?
seismograph, instrument that makes a record of seismic waves caused by an earthquake, explosion, or other Earth-shaking phenomenon.
What information does a seismogram provide?
What is seismogram and uses?
A seismogram is a graph output by a seismograph. It is a record of the ground motion at a measuring station as a function of time. Seismograms typically record motions in three cartesian axes (x, y, and z), with the z axis perpendicular to the Earth’s surface and the x- and y- axes parallel to the surface.
