Earthquakes and Tsunami Flashcard

Flashcard
•
Science
•
8th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Richter Scale?
Back
A logarithmic scale used to measure the magnitude of earthquakes.
2.
FLASHCARD QUESTION
Front
How much more energy does a magnitude 8 earthquake release compared to a magnitude 7 earthquake?
Back
A magnitude 8 earthquake releases 10 times more energy than a magnitude 7 earthquake.
Tags
NGSS.MS-PS3-5
3.
FLASHCARD QUESTION
Front
What type of seismic wave is the fastest?
Back
P (primary) waves are the fastest seismic waves.
4.
FLASHCARD QUESTION
Front
What type of seismic wave arrives at seismic stations second?
Back
S (secondary) waves arrive second.
5.
FLASHCARD QUESTION
Front
What is a tsunami?
Back
A series of ocean waves caused by underwater earthquakes or volcanic eruptions.
Tags
NGSS.MS-ESS3-2
6.
FLASHCARD QUESTION
Front
What instrument is used to detect and measure earthquakes?
Back
A seismograph is used to detect and measure earthquakes.
7.
FLASHCARD QUESTION
Front
What is the focus of an earthquake?
Back
The focus is the point below Earth's surface where rock breaks.
Tags
NGSS.MS-ESS3-2
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