1.This comes about as a consequence of Kepler’s Law of Equal Areas which states that planets sweep out equal areas in equal times. This causes a planet, asteroid, or comet to go faster when it is near the sun. The gravitational force causes the orbit to be faster paced over a longer distance. The farther away from the sun’s gravitational force, the path is at a slower pace over a shorter distance 2. The object’s velocity would stay the same. This pertains to Isaac Newton’s first law of motion which states that bodies in motion tend to stay in motion unless acted on by an outside force. 3. Ptolemy’s model of the solar system included epicycles which are circular orbits on top of circular orbits. He added this because in Aristotle’s model the path of Mars in the sky back-tracks in relation to the stars every 2 years. He wanted to accurately…show more content… Uranus’s odd orbit led Le Verrier to think there was another unknown planet that was disturbing Uranus’s orbit. This prompted him to draft a letter that eventually lead to the discovery of the planet Neptune by Johann Galle. 8. The ocean tides are highest when the Moon is either full or new because the sun, moon, and Earth are in alignment. The alignment of the sun, moon, and earth during full and new moons causes the gravitational pull to be at its highest resulting in higher tides. 9a. The force of gravity decreases as the planet gets further away from the sun.
11A. Planet X is farther away from Earth than Pluto because gravity causes planets to move slower the farther away they are increasing their orbital period.
11B. The semi-major axis of planet X is 60.02 A.U.
12. If we were to scan the radius of the Sun down to the size of a golf ball the size of the solar system would be 50,000cm.
13. If Eratosthenes measured an angle of 3 degrees rather than 7 degrees in Alexandria the circumference of the earth would of been 90,000km. This would have implied that the circumference of the Earth was a lot
