Question
which evidence supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang? (1 point)
• Its temperature fluctuates greatly.
• Its mass fluctuates greatly.
• Its mass is uniform.
• Its temperature is uniform.
How would the development of the universe have been different if there had been no dark matter according to the Big Bang Theory? (1 point)
• The presence of black holes would have been greater in number.
• The structures of the universe would have doubled in number.
• The universe would be contracting rather than expanding.
• The structures in the universe would not have been able to develop.
How is dark energy related to the theory of the Big Bang? (1 point) • It causes the expansion of the universe to accelerate.
• It causes the spinning of galaxies.
• It causes the universe to expand.
• It seeded the formation of galaxies and star clusters.
Blueshift is observed when (1 point)
• a luminous object travels alongside an observer
• a distant luminous object travels rapidly away from an observer
• a distant luminous object travels rapidly towards an observer
• a luminous object is stationary compared to an observer
The universe continues to expand at an accelerating rate due to the force of dark energy. Scientists estimate that the expansion rate of the universe is currently about 73.2 ÷ 1.4 kilometers per second per megaparsec. If a galaxy is located 100 megaparsecs away from us, approximately how fast is it moving away from us in kilometers per second? (1 point)
• 7,320 ≤ 140 km/s
• 732 ÷ 14 km/s
• 73.2 ÷ 1.4 km/s
• 732,000 ≤ 14,000 km/s
Use the following text for the next 5 questions on this test:
• Its temperature fluctuates greatly.
• Its mass fluctuates greatly.
• Its mass is uniform.
• Its temperature is uniform.
How would the development of the universe have been different if there had been no dark matter according to the Big Bang Theory? (1 point)
• The presence of black holes would have been greater in number.
• The structures of the universe would have doubled in number.
• The universe would be contracting rather than expanding.
• The structures in the universe would not have been able to develop.
How is dark energy related to the theory of the Big Bang? (1 point) • It causes the expansion of the universe to accelerate.
• It causes the spinning of galaxies.
• It causes the universe to expand.
• It seeded the formation of galaxies and star clusters.
Blueshift is observed when (1 point)
• a luminous object travels alongside an observer
• a distant luminous object travels rapidly away from an observer
• a distant luminous object travels rapidly towards an observer
• a luminous object is stationary compared to an observer
The universe continues to expand at an accelerating rate due to the force of dark energy. Scientists estimate that the expansion rate of the universe is currently about 73.2 ÷ 1.4 kilometers per second per megaparsec. If a galaxy is located 100 megaparsecs away from us, approximately how fast is it moving away from us in kilometers per second? (1 point)
• 7,320 ≤ 140 km/s
• 732 ÷ 14 km/s
• 73.2 ÷ 1.4 km/s
• 732,000 ≤ 14,000 km/s
Use the following text for the next 5 questions on this test:
Answers
GPT-4o mini
Here are the answers to the questions you've listed:
1. **What evidence supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang?**
- **Answer:** Its temperature is uniform.
2. **How would the development of the universe have been different if there had been no dark matter according to the Big Bang Theory?**
- **Answer:** The structures in the universe would not have been able to develop.
3. **How is dark energy related to the theory of the Big Bang?**
- **Answer:** It causes the expansion of the universe to accelerate.
4. **Blueshift is observed when:**
- **Answer:** a distant luminous object travels rapidly towards an observer.
5. **If a galaxy is located 100 megaparsecs away from us, approximately how fast is it moving away from us in kilometers per second?**
- To calculate this, we use the Hubble constant (73.2 km/s/Mpc):
\[
\text{Velocity} = \text{Hubble Constant} \times \text{Distance}
\]
\[
\text{Velocity} = 73.2 \, \text{km/s/Mpc} \times 100 \, \text{Mpc} = 7320 \, \text{km/s}
\]
- **Answer:** 7320 ≤ 140 km/s (However, please note that this answer choice might seem incorrect based on a misprint or miscalculation; the correct numerical answer based on the calculations provided is 7320 km/s.)
If you have specific text to refer to for the further questions, please share that, and I'll help you with those as well!
1. **What evidence supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang?**
- **Answer:** Its temperature is uniform.
2. **How would the development of the universe have been different if there had been no dark matter according to the Big Bang Theory?**
- **Answer:** The structures in the universe would not have been able to develop.
3. **How is dark energy related to the theory of the Big Bang?**
- **Answer:** It causes the expansion of the universe to accelerate.
4. **Blueshift is observed when:**
- **Answer:** a distant luminous object travels rapidly towards an observer.
5. **If a galaxy is located 100 megaparsecs away from us, approximately how fast is it moving away from us in kilometers per second?**
- To calculate this, we use the Hubble constant (73.2 km/s/Mpc):
\[
\text{Velocity} = \text{Hubble Constant} \times \text{Distance}
\]
\[
\text{Velocity} = 73.2 \, \text{km/s/Mpc} \times 100 \, \text{Mpc} = 7320 \, \text{km/s}
\]
- **Answer:** 7320 ≤ 140 km/s (However, please note that this answer choice might seem incorrect based on a misprint or miscalculation; the correct numerical answer based on the calculations provided is 7320 km/s.)
If you have specific text to refer to for the further questions, please share that, and I'll help you with those as well!