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Question 1 of 22
1. Question
2 pointsWhat term do astronomers use to describe the two times a year when day and night are of equal length?
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The equinox, which occurs in March and September, is a period when the sun is directly over the equator, resulting in days and nights being of equal length.
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Question 2 of 22
2. Question
2 pointsWhich one of the following elements occurs most abundantly in our universe?
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Hydrogen is the most abundant element in the universe. Approximately 73% of the mass of the visible universe is in the form of hydrogen.
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Question 3 of 22
3. Question
2 pointsWhat is the scientific term behind why the stars twinkle?
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Scintillation, which gives us twinkling stars to gaze upon, is caused by turbulence in the Earth’s atmosphere
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Question 4 of 22
4. Question
2 pointsWhich Planet has the largest moon in our solar system ?
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Jupiter has the largest Moon in our solar system – Ganymede
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Question 5 of 22
5. Question
2 pointsWhat is the exact speed of light ?
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Exact speed of light is 299,792,458 m/s. Nothing in this universe can travel faster than this speed.
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Question 6 of 22
6. Question
2 pointsWho speculated that our universe is expanding ?
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Edwin Hubble speculated that our universe is expanding by studying the red shifting of distant galaxies
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Question 7 of 22
7. Question
2 pointsWhat does the energy of photons depend upon ?
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Energy of any electromagnetic wave is measured by E=hf, where f is frequency
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Question 8 of 22
8. Question
2 pointsGravitational Waves travels at speed of light ?
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Gravitational waves is a wave passing through fabric of spacetime and it also travels at the speed of light
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Question 9 of 22
9. Question
2 pointsWho discovered that planets revolve in elliptical path ?
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Johannes Kepler discovered that planets revolve in elliptical path
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Question 10 of 22
10. Question
2 pointsWhich Planet has the tallest mountain in the solar system ?
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Mars has the tallest mountain in the solar system – Olympus Mons
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Question 11 of 22
11. Question
2 pointsWhich is the largest void in the universe?
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KBC Void is the largest void in the universe – At nearly 2 billion light-years in diameter. Our galaxy in this void.
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Question 12 of 22
12. Question
2 pointsThe heliosphere is a
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The sun sends out a constant flow of charged particles called the solar wind which creates a magnetic bubble in the interstellar space
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Question 13 of 22
13. Question
2 pointsThe heliosphere is mostly made of material emitted by
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The heliosphere is made out of charged particles emitted by our Sun
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Question 14 of 22
14. Question
2 pointsThe word ‘galaxy’ is from the Greek ‘galaxias’ which means
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The word ‘galaxy’ is from the Greek ‘galaxias’ which means Milky
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Question 15 of 22
15. Question
2 pointsGalaxies are classified according to
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Galaxies are classified according to their structure
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Question 16 of 22
16. Question
2 pointsIf you happen to cross the event horizon into a black hole, your body gets stretched out in a process called
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The process is called spaghettification
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Question 17 of 22
17. Question
2 pointsWhen Our Sun Dies It Will Make a Black Hole
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No, our Sun don’t have enough pass to turn into a singularity
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Question 18 of 22
18. Question
2 pointsWhat is the name of the black hole at the center of the Milky Way ?
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Sagittarius A* is the compact radio source at the center of our galaxy which is considered to the black hole
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Question 19 of 22
19. Question
2 pointsAccording To the Schwarzschild Radius what size would you have to compress the earth to make a black hole
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You need to compress to the size of One cubic centimeter to make it a black hole
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Question 20 of 22
20. Question
1 pointsWho theorized the existence and cause of Gravitational Waves ?
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Albert Einstein theorized the existence and cause of gravitational waves
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Question 21 of 22
21. Question
2 pointsThe speed of light is constant in all frames of reference.
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Speed of light is constant irrespective of the frame of reference
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Question 22 of 22
22. Question
2 pointsAccording to special theory of relativity, moving clock ______ relative to stationary observer
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According to special theory of relativity, moving clock Slows down relative to stationary observer