Question

Which does Kepler’s second law state about planetary motion?(1 point)
Responses

Planets move at the same speed at all points along their orbit.
Planets move at the same speed at all points along their orbit.

A line between the planet and the sun covers equal areas in equal times.
A line between the planet and the sun covers equal areas in equal times.

The planet travels along an elliptical orbit.
The planet travels along an elliptical orbit.

The square of the orbital period is directly proportional to the cube of the semi-major axis.
The square of the orbital period is directly proportional to the cube of the semi-major axis.

Answer 1

ow did Kepler develop his second law of motion?(1 point)
Responses

He compared data of planetary motion at different times along orbits.
He compared data of planetary motion at different times along orbits.

He made accurate measurements of the positions of all the planets over many years.
He made accurate measurements of the positions of all the planets over many years.

He used a telescope to carefully follow and time the orbital motion of Mars.
He used a telescope to carefully follow and time the orbital motion of Mars.

He invented a telescope that was strong enough to view all planets of the solar system along their orbi

Answer 2

A line between the planet and the sun covers equal areas in equal times.

Answer 3

He used a telescope to carefully follow and time the orbital motion of Mars.