HW#5: pg. 57 Rev 4 – 6, CST 4 – 6
Rev 4 – 6
4. What was the great contribution of Copernicus to our knowledge of the solar system? How was his model still flawed?
5. What is a scientific theory? Can a theory ever be proved true?
6. What discoveries of Galileo helped confirm the views of Copernicus, and how did they do so?
CST 4 – 6
4. An accurate sketch of Jupiter's orbit around the Sun would show (a) the Sun far off center; (b) an oval twice as long as it is wide; (c) a nearly perfect circle; (d) phases.
5. A calculation of how long it takes a planet to orbit the Sun would would be most closely related to Kepler's (a) first law of orbital shapes; (b) second law of orbital speeds; (c) third law of planetary distances; (d) first law of inertia.
6. An asteroid with an orbit lying entirely inside Earth's (a) has an orbital semimajor axis of less than 1 AU; (b) has a longer orbital period than Earth's; (c) moves more slowly than Earth; (d) must have a highly eccentric orbit.