Which phrase defines a seismograph? (1 point)
A: an instrument used to measure vibrations
B: a record of seismic activity from earthquakes
C: a wave that is generated by an earthquake
D: a fracture within rocks along which earthquakes occur
2: Which option describes the seismic waves that can cause damage to structures during an earthquake? (1 point)
A: All seismic waves can cause damage, but P waves and S waves cause the most damage.
B: Only P waves and S waves can cause damage. Surface waves do not cause any damage.
C: Only surface waves can cause damage. P waves and S waves do not cause any damage.
D: All seismic waves can cause damage, but surface waves cause the most damage.
3: In which states would it be most necessary for engineers to consider the possibility of earthquakes when designing structures and buildings? (1 point)
A: Pennsylvania and Minnesota
B: California and Washington
C: Texas and North Dakota
D: New York and Florida
4: Which of the following best explains why engineers might prefer to use steel as a building material when designing earthquake-safe structures? (1 point)
A: because it is more readily available in developing countries
B: because it is less able to withstand seismic vibrations
C: because it is more flexible than other materials
D: because it is less expensive than other materials
1: Which phrase defines a seismograph?
Answer: A, an instrument used to measure vibrations
2: Which option describes the seismic waves that can cause damage to structures during an earthquake?
Answer: D, All seismic waves can cause damage, but surface waves cause the most damage.
3: In which states would it be most necessary for engineers to consider the possibility of earthquakes when designing structures and buildings?
Answer: B, California and Washington
4: Which of the following best explains why engineers might prefer to use steel as a building material when designing earthquake-safe structures?
Answer: C, Because it is more flexible than other materials
If these are not correct for you, you likely have the wrong assessment.
(I took the quick check and got the answers from it.)
1: A: an instrument used to measure vibrations
2: A: All seismic waves can cause damage, but P waves and S waves cause the most damage.
3: B: California and Washington
4: C: because it is more flexible than other materials
Remember, engineers like their buildings to have some "flex appeal".
1: A: an instrument used to measure vibrations
2: A: All seismic waves can cause damage, but P waves and S waves cause the most damage.
3: B: California and Washington
4: C: because it is more flexible than other materials
1: The phrase that defines a seismograph is A: an instrument used to measure vibrations. To get this answer, you can read the definition of a seismograph. A seismograph is a scientific instrument used to measure and record the vibrations or seismic waves caused by earthquakes, explosions, or other seismic sources.
2: The option that describes the seismic waves that can cause damage to structures during an earthquake is B: Only P waves and S waves can cause damage. Surface waves do not cause any damage. To determine this answer, you need to understand the different types of seismic waves. P waves (primary waves) and S waves (secondary waves) are body waves that can cause significant damage to structures during an earthquake. Surface waves, although they may be felt strongly, generally cause less structural damage.
3: The states in which it would be most necessary for engineers to consider the possibility of earthquakes when designing structures and buildings are B: California and Washington. To find this answer, you need to know the regions in the United States that are prone to earthquakes. California and Washington are located along the Pacific Coast and are known for having frequent seismic activity.
4: The best explanation for why engineers might prefer to use steel as a building material when designing earthquake-safe structures is C: because it is more flexible than other materials. To determine this answer, you can consider the properties of steel and how they relate to earthquake-resistant design. Steel is known for its strength and flexibility, which allows it to absorb and dissipate seismic energy during an earthquake. This makes it an ideal material for structures in earthquake-prone areas.