Earthquakes can be recorded on a seismograph. This device produces a piece of paper with a long flat line, along with scribbles drawn with a needle that represent times when there has been an earthquake. How is energy transmitted to the seismograph? (1 point)
• Sound waves carry energy through Earth and shake Earth below the seismograph.
•Seismic waves carry energy through the air and shake the needle of the seismograph.
Seismic waves carry energy through Earth and shake Earth below the seismograph.
• Sound waves carry energy through the air and shake the needle of the seismograph.
Seismic waves carry energy through Earth and shake Earth below the seismograph.
Which statement describes the transmission of mechanical waves? (1 point)
O They cannot travel through matter, but they can in a vacuum.
O They can travel through matter and in a vacuum.
O They can travel through matter, but not in a vacuum.
• They cannot travel through matter nor in a vacuum.
They can travel through matter and in a vacuum.
Seismic waves carry energy through Earth and shake Earth below the seismograph.
Seismic waves carry energy through Earth and shake the Earth below the seismograph.
To explain further, seismic waves are waves of energy that are generated by earthquakes and travel through the Earth's layers. When an earthquake occurs, the energy from the movement of tectonic plates is transmitted as seismic waves. These waves propagate through the Earth and cause the ground to vibrate or shake.
The seismograph is a device designed to detect and record these seismic waves. It consists of a stationary base and a suspended mass with a pen or needle attached to it. When the ground shakes due to seismic waves, the base of the seismograph remains relatively stationary while the suspended mass moves along with the shaking.
This movement of the suspended mass causes the pen or needle to shake and create scribbles on a piece of paper, which results in a graphical representation of the earthquake's movement. The long flat line on the paper, often called the baseline, is the reference point that indicates when there is no seismic activity or when the ground is not shaking.
In summary, seismic waves carry energy through the Earth, causing the ground to shake and transmitting that movement to the seismograph. The needle on the seismograph then records these vibrations as scribbles on a piece of paper, allowing scientists to analyze and study earthquakes.