Which of these describes Kepler’s third law of orbital motion?(1 point)

Question

Responses

T∝a^2

T^3 ∝a^2

T^2∝a

T^2 ∝ a^3

Answer 1

T^2 ∝ a^3

Answer 2

Which statement describes Kepler’s third law of orbital motion?(1 point)
Responses

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

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

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

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

Answer 3

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

Answer 4

Which planet’s orbit was Kepler first studying when he began to develop his laws of orbital motion?(1 point)
Responses

Earth

Mars

Saturn

Jupiter

Answer 5

Mars