Which variables are involved in understanding Kepler's third law of motion?(1 point)

Question

Responses

orbital velocity, distance to sun
orbital velocity, distance to sun

period of revolution, period of rotation
period of revolution, period of rotation

eccentricity of orbit, rotational velocity
eccentricity of orbit, rotational velocity

rotational velocity, distance to sun

Answer 1

To understand Kepler's third law of motion, the relevant variables are:

orbital velocity, distance to sun

However, Kepler's third law specifically relates the period of revolution (the time it takes for a planet to complete one orbit around the sun) to the average distance from the sun (semi-major axis of the orbit) for planets in relation to each other.

So, a more precise response based on capturing the essence of Kepler's third law would be focused on:

• period of revolution, distance to sun (not listed directly in your options, but implied).

The law states that the square of the period of revolution (T) of a planet is directly proportional to the cube of the semi-major axis (a) of its orbit (T^2 ∝ a^3).