14. Astronomy and cosmology.md
2024-4-11|2024-4-12
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Cosmology and Astrophysics
- Understand: What is meant by the term 'luminosity' in the context of stars? Answer:
- Recall and Use: How is the inverse square law used to calculate radiant flux intensity in terms of the luminosity of a source? Answer:
- Understand: What is a 'standard candle' in astronomy? Answer:
- Understand: How are standard candles used to determine distances to galaxies? Answer:
- Recall and Use: How is Wien’s displacement law used to estimate the peak surface temperature of a star? Answer:
- Use: How is the Stefan–Boltzmann law used? Answer:
- Use: How can Wien’s displacement law and the Stefan–Boltzmann law be used together to estimate the radius of a star? Answer:
- Understand: What does it mean when the lines in the emission spectra from distant objects show an increase in wavelength from their known values? Answer:
- Use: How is the formula used for the redshift of electromagnetic radiation from a source moving relative to an observer? Answer:
- Explain: Why does redshift lead to the idea that the Universe is expanding? Answer:
- Recall and Use: How is Hubble’s law expressed and how does it support the Big Bang theory? Answer:
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