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100
An earthquake is usually caused by a ______.
Movement along a fault
100
longitude is what
how far east or west of the prime meridian
100
what do we use to measure earthquakes
richter scale
100
What structures can be used to help a building resist the lateral forces of an earthquake?
bracing
shear wall
beam
brick
shear wall
100
seismic wave is...
a vibration caused by an earthquake
200
what does it mean to brace a building?
pieces of materials that help connect beams and columns
200
Why do earthquakes usually occur near plate boundaries?
answers may vary
200
a break or crack in the rocks of earths crust where movement can take place
fault
200
How can you determine the amplitude of the wave pattern shown below?
Measure the length of each peak.
Count the number of peaks.
Measure the length of the entire wave.
Measure the height of the waves.
Measure the height of the waves.
200
what part shows a wavelength
a
300
give some examples on how we can prepare for earthquakes
answers may vary
300
If you use walking as a model for wavelength and amplitude, what would a long and high step represent?
A) short wavelength, low amplitude
B) short wavelength, high amplitude
C) long wavelength, low amplitude
D) long wavelength, high amplitude
d) long wavelength, high amplitude
300
A ____ is an instrument that detects and measures waves produced by earthquakes.
seismograph
300
latitude is what
location north or south of the equator
300
What location on earth has a earthquake emergency system in place
Japan
400
Beth is designing a solution to a problem. What is the first step of the process Beth should use?
a) ask
b) plan
c) create
d)improve
a) ask
400
The distance between wave crests is called
wavelength
400
seismologists do what???
study earthquakes and their size
400
___- waves spread out in all directions from the focus, the point where an earthquake begins.
seismic
400
A group of students are designing a model house that is safe in strong winds.Which house would be the safest?
A house built out of bricks.
B house built out of toothpicks.
C house built out of linking cubes.
D house built out of craft sticks.
C- house built out of linking cubes
500
is the height of a wave from its trough to its midpoint
amplitude or wavelength
amplitude
500
an earthquake is what???
shaking of the rock that makes up earths crust
500
Which best describes how earthquakes and volcanoes shape the land?
A They can destroy things, but they can also build up the land.
B They break down the land.
C They build up the land.
D Only weathering and erosion can change the land.
A- They can destroy things, but they can also build up the land
500
plates are ....
large pieces that make up the earths crust
500
the ring of fire is what??
an area in the pacific ocean where a lot of earthquakes and volcanoes occur