Astronomy chapter 2 TY PDF

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chapter 2 ty questions...

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Chapter 2: 1. A total solar eclipse demonstrates that the moon and sun are very nearly the same angular size. If the sun is 400 times farther from us than the moon, then the radius of the moon must be _______ the radius of the sun. (d) 1/400th of 2. A planet in Retrograde motion (b) Shifts westward with respect to the stars 3. “Ockham’s razor” refers to (b) A metaphor for the process of discriminating between models based on their simplicity. 4. If an asteroid has an average distance from the sun of 4 AU, what is its orbital period? (d) 2 Years 5. Kepler’s third law a. Relates a planet’s orbital period to the size of its orbit around the sun. 6. Galileo used his observations of the changing phases of Venus to demonstrate that (e) Venus orbits the sun 7. A major objection to the heliocentric model not resolved until the development of highquality telescopes was that (C) the stars did not exhibit parallax...