DYNAMIC EARTH: EARTHQUAKES EXAM
COMPLETE
What is the main cause of an earthquake?
force of gravity
the shaking of the ground
stress caused by plate movement
waves that ripple from the epicenter - ANSWER- stress caused by plate movement
Which type of wave vibrates both side to side and up and down?
P wave
S wave
surface wave - ANSWER- S wave
Which type of wave is the first to arrive during an earthquake?
P wave
S wave
surface wave - ANSWER- P wave
Which type of wave may make the ground roll?
P wave
S wave
surface wave - ANSWER- surface wave
When earthquakes produce vibrations called waves, how do those waves travel?
- They ripple from the epicenter of the earthquake.
- They move back and forth and side to side through water.
- They travel away from the focus of the earthquake in all directions.
- They move slowly and increase in intensity as they reach Earth's surface. - ANSWER-
They travel away from the focus of the earthquake in all directions.
The ______ scale is best used to measure the strength of small, nearby earthquakes. -
ANSWER- Richter
The _____ magnitude scale is useful for measuring the strength of earthquakes of all
sizes and at all distances from a seismograph. - ANSWER- moment
Which statement about the Mercalli scale is true?
- The scale has twenty ratings for an earthquake's effects.
, - The scale rates an earthquake based on its total energy released.
- The scale rates an earthquake according to how much damage it causes.
- The scale is most useful when scientists use data from three or more seismographs. -
ANSWER- The scale rates an earthquake according to how much damage it causes.
Which is used to find the epicenter of an earthquake?
magnitude
seismic waves
seismograph
seismometer - ANSWER- seismograph
Which increases along faults and leads to rock breaking?
damage
earthquake
focus
stress - ANSWER- stress
Which statement describes seismic waves?
They carry energy.
They move in one direction.
They travel from the epicenter.
They only vibrate at Earth's surface. - ANSWER- They carry energy.
Which statement describes the damage that results from earthquakes?
- Amount of damage can be used to determine intensity.
- Damage can be measured using the Richter scale.
- The amount of damage increases as the magnitude decreases.
- Earthquakes that cause maximum damage are the most common. - ANSWER-
Amount of damage can be used to determine intensity.
Which is one step that geologists use to find the epicenter of an earthquake?
- They look at data from at least one seismograph.
- They measure the difference between arrival of P waves and S waves.
- They draw circles around the epicenter from three locations.
- They obtain information about the intensity of earthquakes from seismographs. -
ANSWER- They measure the difference between arrival of P waves and S waves.
Which statement describes earthquakes?
They release energy.
COMPLETE
What is the main cause of an earthquake?
force of gravity
the shaking of the ground
stress caused by plate movement
waves that ripple from the epicenter - ANSWER- stress caused by plate movement
Which type of wave vibrates both side to side and up and down?
P wave
S wave
surface wave - ANSWER- S wave
Which type of wave is the first to arrive during an earthquake?
P wave
S wave
surface wave - ANSWER- P wave
Which type of wave may make the ground roll?
P wave
S wave
surface wave - ANSWER- surface wave
When earthquakes produce vibrations called waves, how do those waves travel?
- They ripple from the epicenter of the earthquake.
- They move back and forth and side to side through water.
- They travel away from the focus of the earthquake in all directions.
- They move slowly and increase in intensity as they reach Earth's surface. - ANSWER-
They travel away from the focus of the earthquake in all directions.
The ______ scale is best used to measure the strength of small, nearby earthquakes. -
ANSWER- Richter
The _____ magnitude scale is useful for measuring the strength of earthquakes of all
sizes and at all distances from a seismograph. - ANSWER- moment
Which statement about the Mercalli scale is true?
- The scale has twenty ratings for an earthquake's effects.
, - The scale rates an earthquake based on its total energy released.
- The scale rates an earthquake according to how much damage it causes.
- The scale is most useful when scientists use data from three or more seismographs. -
ANSWER- The scale rates an earthquake according to how much damage it causes.
Which is used to find the epicenter of an earthquake?
magnitude
seismic waves
seismograph
seismometer - ANSWER- seismograph
Which increases along faults and leads to rock breaking?
damage
earthquake
focus
stress - ANSWER- stress
Which statement describes seismic waves?
They carry energy.
They move in one direction.
They travel from the epicenter.
They only vibrate at Earth's surface. - ANSWER- They carry energy.
Which statement describes the damage that results from earthquakes?
- Amount of damage can be used to determine intensity.
- Damage can be measured using the Richter scale.
- The amount of damage increases as the magnitude decreases.
- Earthquakes that cause maximum damage are the most common. - ANSWER-
Amount of damage can be used to determine intensity.
Which is one step that geologists use to find the epicenter of an earthquake?
- They look at data from at least one seismograph.
- They measure the difference between arrival of P waves and S waves.
- They draw circles around the epicenter from three locations.
- They obtain information about the intensity of earthquakes from seismographs. -
ANSWER- They measure the difference between arrival of P waves and S waves.
Which statement describes earthquakes?
They release energy.
