22.9: The Solar System- Challenge 2
- Page ID
- 6163
- 1. ___ is the planet most similar to Earth in terms of size and overall mass.
- Venus
- 2. Mercury makes about ___ revolutions around the Sun in the time Earth makes 10 revolutions.
- 40
- 3. On which planet would a person's weight be closest to their weight on Earth?
- Venus
- 4. The time it takes a planet to make one complete orbit around the Sun is known as its ___.
- orbital period
- 5. The planets' orbits are ___ in shape.
- slightly elliptical
- 6. ___ discovered the relationship between a planet's orbital period and its distance from the Sun.
- Johannes Kepler
- 7. ___ experiences the strongest gravitational attraction to the Sun.
- Mercury
- 8. Order the following in terms of decreasing gravitational force: Earth, Moon, Sun
- Sun, Earth, Moon
- 9. ___ is the planet that experiences the weakest gravitational attraction to the Sun.
- Neptune