When the Earth is moving away from the sun it begins to slow down, why is that?

Answer 1

The Earth does not actually slow down when moving away from the Sun in its orbit. Its orbital speed remains relatively constant throughout its elliptical path. However, the perception that the Earth may be slowing down in its orbit is due to the change in its distance from the Sun.

According to Kepler's laws, planets move in elliptical orbits around the Sun, with the Sun located at one of the foci of the ellipse. This means that as the Earth moves further away from the Sun, its distance from the Sun increases. As a result, it takes a slightly longer time for the Earth to complete one full orbit around the Sun.

This change in distance causes a perceived slowing down of the Earth's motion from our perspective on Earth. However, it is important to note that this apparent change in speed is only relative to the changing distance from the Sun, and the Earth's actual speed remains constant.