What modifications did Kepler make to Copernicus’s model? Check all that apply.
1 Planetary orbits are elliptical.
2 Planets closer to the Sun move faster.
3 Planets spin in an epicycle while orbiting Earth.
4 Venus has phases due to its orbiting of the Sun.
5 Earth’s rotation causes the rising and setting of the Sun.
Answers
The correct answer is option A. Planets move in elliptical orbits and this theory was formulated by Johannes Kepler. Kepler's laws of planetary motion defined a set of rules followed by the planets while revolve around the sun and determines their orbits. This modified the earlier theory of circular orbits from Nicholas Copernicus.
The correct option is option (A)-Planetary orbit are elliptical and option (E)-Earth’s rotation Causes the rising and setting of the Sun.
Johannes Kepler had derived three laws to describe the motion of the planets around the sun.
The law of Orbit which concluded that the planet moves in elliptical orbits.
The Law of Areas which concluded that a line connects a planet with sun sweeps out equally according to time and area.
The Law of Periods which concluded that the square of the period is proportional to the cube of semi-major axis of planets orbit.