Question
Which type of information can scientists collect using a seismograph?(1 point)
Responses
measurements of vibrations occurring inside Earth
measurements of vibrations occurring inside Earth
the amount of debris produced by a volcano
the amount of debris produced by a volcano
temperatures of molten rock inside Earth
temperatures of molten rock inside Earth
pollution levels in the air after a volcanic erupt
measurements of vibrations occurring inside Earth
To determine the type of information scientists can collect using a seismograph, we need to understand what a seismograph is and how it works.
A seismograph is a scientific instrument used to measure and record the vibrations, or seismic waves, that occur on Earth's surface or within the Earth. It consists of a heavy mass attached to a stationary base and a pen or stylus that is affixed to the mass. When seismic waves pass through the Earth and reach the seismograph, the base remains stationary while the mass moves. This relative motion between the base and the mass is recorded by the pen or stylus, creating a graphical representation of the seismic activity.
Now, let's evaluate the given options one by one:
1. Measurements of vibrations occurring inside Earth:
- This option is correct. A seismograph is specifically designed to measure the vibrations or seismic waves occurring inside the Earth. By analyzing the recorded seismic data, scientists can learn about the characteristics of earthquakes, such as their magnitude, depth, and location.
2. The amount of debris produced by a volcano:
- This option is not directly related to the measurements obtained from a seismograph. A seismograph focuses on measuring vibrations rather than the physical debris produced by volcanic activity.
3. Temperatures of molten rock inside Earth:
- A seismograph cannot directly measure the temperatures of molten rock inside the Earth. Temperature measurements are typically obtained through other methods like drilling or using specialized equipment.
4. Pollution levels in the air after a volcanic eruption:
- Again, a seismograph does not directly measure pollution levels in the air. It specifically records seismic waves and their characteristics, not atmospheric or environmental factors.
In conclusion, the correct answer is the first option: measurements of vibrations occurring inside Earth. Scientists use a seismograph to study and understand seismic waves and earthquakes.