What percentage of the mass energy of the known universe is accounted for by dark energy?
Dark energy
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Science, Physics
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6th - 12th Grade
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Hard
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Dark energy constitutes 70% of the universe's mass energy and is responsible for the accelerating expansion of the universe, counteracting the effects of gravity. It is the most accepted explanation for these phenomena.
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5 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
What unexpected observations led to the suggestion of dark energy's existence?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
How is the expansion of the universe characterized after the Big Bang?
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4.
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3 mins • 1 pt
What is the effect of dark energy on gravity?
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5.
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3 mins • 1 pt
What is considered the best explanation for dark energy?
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