1. What is the primary factor that makes shadows in the Kepler-47c system more complex than shadows in our own solar system?
- A. The presence of two stars.
- B. The size of the planet Kepler-47c.
- C. The distance of the planet from its stars.
- D. The composition of the planet's atmosphere.
2. What fundamental condition is necessary for an eclipse to occur on a moon orbiting a planet?
- A. The moon must be larger than its planet.
- B. The planet must have a strong magnetic field.
- C. An object must pass between a light source and the moon's surface.
- D. The moon must be in the habitable zone of its star system.
3. In the Kepler-47 system, why would a total eclipse, where all starlight is blocked, be an extremely rare event on the moon of Kepler-47c?
- A. The planet Kepler-47c is too small to cast a significant shadow.
- B. The moon's orbit is too fast to stay in the shadow for long.
- C. The two stars are far apart, so the shadow from one star is lit up by the other star.
- D. The planet does not have a solid surface to reflect light.
4. Which statement provides the strongest evidence for the claim that *some* form of eclipse is possible on a moon orbiting Kepler-47c?
- A. The moon is tidally locked to the planet.
- B. The planet Kepler-47c is a large object and therefore must cast a shadow.
- C. The two stars in the system are similar in size to our Sun.
- D. The system is located within our own Milky Way galaxy.
5. Imagine the two stars in the Kepler-47 system were orbiting each other much more closely. How would this likely affect eclipses on Kepler-47c's moon?
- A. Eclipses would become impossible because the stars would merge.
- B. The duration of any eclipse would become significantly shorter.
- C. Eclipses would only happen during the daytime on the moon.
- D. Total eclipses would become more frequent because the two stars would act more like a single, combined light source, making it easier for the planet to block both at once.