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Questions and Answers
What is the general definition of matter in classical physics and general chemistry?
What is the general definition of matter in classical physics and general chemistry?
- Anything that can be touched
- Anything with rest mass and volume
- Anything with mass
- Anything with mass and volume (correct)
Dark matter is called 'dark' because it does not interact with which of the following?
Dark matter is called 'dark' because it does not interact with which of the following?
- Strong nuclear force
- Weak nuclear force
- Gravity
- Electromagnetic field (correct)
What is the predominant type of matter in the universe?
What is the predominant type of matter in the universe?
- Dark matter (correct)
- Ordinary matter
- Dark energy
- Antimatter
Which theory suggests that more matter is present in the universe than can be seen?
Which theory suggests that more matter is present in the universe than can be seen?
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What percentage of the mass-energy content of the universe is dark matter in the standard Lambda-CDM model of cosmology?
What percentage of the mass-energy content of the universe is dark matter in the standard Lambda-CDM model of cosmology?
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What are some lines of evidence for the existence of dark matter?
What are some lines of evidence for the existence of dark matter?
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