Why are there giant concrete tunnels in the desert?

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Physics, Science, Health Sciences, Other, Biology
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10th - 12th Grade
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the significance of the 2015 announcement related to gravitational waves?
It showed that light travels faster than gravity.
It was the first detection of gravitational waves.
It disproved the theory of relativity.
It confirmed the existence of black holes.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the Earth if the Sun suddenly disappears?
It immediately flies off into space.
It continues orbiting for 8 minutes and 20 seconds.
It stops moving instantly.
It moves closer to the Moon.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do gravitational-wave detectors like LIGO need to be extremely sensitive?
To observe the Sun's gravitational pull.
To detect waves from billions of light-years away.
To measure the Earth's rotation.
To detect sound waves from space.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of having multiple LIGO detectors?
To reduce the cost of operations.
To measure the Earth's magnetic field.
To increase the power of the laser beams.
To confirm detections by comparing signals.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effective arm length of LIGO's detectors due to light bouncing back and forth?
4 kilometers
120 kilometers
12,000 kilometers
1,200 kilometers
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the first type of astronomical event detected by LIGO?
Two black holes colliding.
A supernova explosion.
A comet passing by Earth.
A solar eclipse.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the stiffness of space affect gravitational wave detection?
It requires more sensitive detectors.
It amplifies the waves' signals.
It prevents waves from traveling.
It makes space more compressible.
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