5 Questions
Dark matter is called 'dark' because it does not interact with which field?
Electromagnetic field
What is the main evidence for the existence of dark matter?
Gravitational lensing
In the standard Lambda-CDM model of cosmology, what percentage of the universe's mass-energy content is dark matter?
26.8%
Which type of matter is thought to be the predominant type in the universe?
Dark matter
What observations cannot be explained by general relativity without the presence of dark matter?
All of the above
Study Notes
Dark Matter
- Dark matter is called 'dark' because it does not interact with the electromagnetic field, making it invisible to our telescopes.
- The main evidence for the existence of dark matter is the observation of its gravitational effects on visible matter and the large-scale structure of the universe.
- In the standard Lambda-CDM model of cosmology, dark matter makes up approximately 27% of the universe's mass-energy content.
- Dark matter is thought to be the predominant type of matter in the universe, with normal matter making up only a small fraction.
- Observations of galaxy rotation curves, galaxy clusters, and the large-scale structure of the universe cannot be explained by general relativity without the presence of dark matter.
Test your knowledge on dark matter and its mysterious properties with this insightful quiz. Explore the concept, its detection challenges, and its implications in our universe. Challenge yourself and uncover the enigmatic nature of this hypothetical form of matter.
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