University:
College Entrance Preparation
Course:
ACT Preparation (Science)
Academic year:

2021
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332

Pages:

2
Author:

Nossardisd7p

Name: Answer Key Period: Date: Earthquakes Quiz Study Guide Quiz on Wednesday, October 25th Vocabulary: 1. **Seismogram:** the record (printout) of an earthquake's seismic activity. 2. **Seismograph:** the tool used by scientists to measure an earthquake. 3. **Epicenter:** the center of an earthquake on the earth's surface. 4. **Focus (hypocenter):** the center of an earthquake underground. 5. **P-Waves:** Seismic waves that compress and expand like an accordion. 6. **S-Waves:** Seismic waves that move up and down and side to side. 7. **Surface Waves:** slowest seismic waves - cause most severe movement. 8. **Mercalli Scale:** Scale used to report damages caused by earthquakes (1-12). 9. **Richter Scale:** Scale used to record strength of earthquakes (1-10). Application of Knowledge: 1. Seismic waves that move the fastest: **P-waves** 2. Push-pull waves that compress and expand the ground: **P-waves** 3. Cause the ground to roll in a wave-like motion: **Surface waves** 4. Waves that produce the most severe ground movements: **Surface waves** 5. Seismic waves that move the slowest: **Surface waves** 6. Seismic waves that move about ½ the speed of P waves: **S-waves** 7. Waves that vibrate the crust side to side and up and down are called: **S-waves**