1. Which earthquake generated bigger seismograms?
2. How did the amplitude of your seismograms compare with the others? (Amplitude refers to the height of a wave.)
3. How did this activity help to understand earthquake better?
Answers
Answer:
The fundamental observations used in seismology (the study of earthquakes) are seismograms which are a record of the ground motion at a specific location. Seismograms come in many forms, on "smoked" paper, photographic paper, common ink recordings on standard paper, and in digital format (on computers, tapes, CD ROMs). Careful observation of ground vibrations during the last 80 years or so have lead to our understanding these vibrations, which are caused by seismic waves. We'll discuss waves in more detail in the next section, for now we need a few basics so that we can understand the variety of seismic signals and instruments.
Answer:
Ans 1 - Most seismographs today are electronic, but a basic seismograph is made of a drum with paper on it, a bar or spring with a hinge at one or both ends, a weight, and a pen. ... As the drum and paper shake next to the pen, the pen makes squiggly lines on the paper, creating a record of the earthquake.
Ans 2 - The height of a wave from the center line to its crest is its amplitude. The distance between waves from crest to crest (or trough to trough) is its wavelength.
Ans 3 - Scientists study earthquakes because they want to know more about their causes and predict where they are likely to happen. ... This information helps scientists and engineers build safer buildings – especially important buildings in an emergency, like hospitals and government buildings.
Explanation:
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