Classic Classic Quiz Earthquakes (6th Grade) by Betteker Betteker 3 375 played - 11 yrs ago Earthquake Causes and Terms QUIZ 30 QUESTIONS medium 1 In earthquake terminology, how is a focus described? Energy of an earthquake carried away from the epicenter.The point beneath the Earth's surface where rock under stress breaks to cause an earthquake.The point on the surface directly above the origin of the earthquake. 2 What are the different kinds of seismic waves? Q, R, and S wavesR, S, and surface wavesP, S, and surface waves 3 How can the epicenter of an earthquake be characterized? A measurement of an earthquake's magnitude and its strength based on seismic waves and movement.The point on the Earth's surface directly above the focus.The point beneath the Earth's surface where rock under stress breaks to cause an earthquake. 4 How does the energy of an earthquake travel through the Earth? Seismic waves carry the energy of an earthquake away from the focus, through the Earth's interior, and across the surface.Seismic waves carry the energy of an earthquake toward the focus, through the Earth's interior, and across the surface.During an earthquake, seismic waves move toward the focus and epicenter then move out in all directions. 5 ________ carry the energy of an earthquake away from the focus. Mercalli wavesRichter wavesSeismic waves 6 When considering the three types of seismic waves, which waves move more slowly than their counterparts yet produce the most severe ground movements? P wavesS wavesSurface waves 7 These type of waves compress and expand the ground like an accordion. P wavesS wavesSurface waves 8 Which waves vibrate from side to side and up and down? P wavesS wavesSurface waves 9 When P and S waves reach the surface of the Earth, some are transformed into surface waves. TrueFalseI have no earthly idea. 10 What instrument is used to measure and record the vibrations of seismic waves? Richter graphSeismographMercalli graph 11 An earthquake's ___________ is a measurement of its strength based on seismic waves and movement along faults. EnergyIntensityMagnitude 12 How many rating scales are used to measure earthquakes? 235 13 This rating scale rates earthquakes according to the size of seismic waves as measured by a seismograph. Moment magnitude scaleMercalli scaleRichter scale 14 What earthquake rating scale rates earthquakes by describing their effects on people, buildings, and the land surface in a given location? Moment magnitude scaleMercalli scaleRichter scale 15 This scale rates earthquakes by estimating the total energy released. Moment magnitude scaleMercalli scaleRichter scale 16 Which earthquake rating scale can be used to rate earthquakes of all sizes, near or far? Moment magnitude scaleMercalli scaleRichter scale 17 Rank the seismic waves in order of appearance when an earthquake first occurs as measured by a seismograph. S waves, P waves, then surface wavesP waves, S waves, then surface wavesS and P waves at the same time, then surface waves 18 When an earthquake strikes, the farther away the epicenter is, the greater the difference between the two arrival times of P and S waves. TrueFalseI have no idea. 19 Typically, three different seismograph stations are used to plot circles on a map with each circle showing the distance from one station to all the points where the epicenter could be. The farthest circle from all the seismographs is the epicenter location.The single point where the three circles intersect is the epicenter location.The closest point to the first seismograph that registered is the epicenter location. 20 The time difference for the arrival of P and S waves at a seismograph tells scientists what information? How far from the seismograph the epicenter is.How far deep in the earth the origin of the focus is.The magnitude of the earthquake. 21 What state has the most earthquakes and the strongest earthquakes? CaliforniaOregonAlaska 22 An earthquake can be defined as the sudden shaking of the __________. Oceanic crustLithosphereInner core 23 The earth's crust may at first bend and when the stress force exceeds the strength of the rock, it changes and breaks. The process of breaking results in seismic waves. TrueFalseI do not have a clue. 24 What are the three main causes of earthquakes? Volcanoes, movemement of tectonic plates, human activity such as bombsVolcanoes, the moon's gravitational forces, tectonic plate movement.Volcanoes, the sun's gravitational forces, tectonic plate movement. 25 The break in the Earth's crust where slabs of crust slip past each other is called a _______. Tectonic plateLithosphere breakFault 26 What is the point beneath the Earth's crust where rocks first break under stress causing an earthquake? First seismic surface waveEpicenterFocus or hypocenter 27 Seismic waves are best described as : EnergyVibrationsForces 28 Which seismic waves make the ground roll like ocean waves causing buildings to sway from side to side? S wavesP wavesSurface waves 29 The most likely causes of volcanoes and earthquakes are : The breaking of the lithosphereThe slipping or interacting of tectonic platesMagma and energy release from the inner core of the earth 30 Which seismic waves are the most destructive? S wavesP wavesSurface waves Commentaires
