Question

what does keplers third law relate?
planetary size and mass
planetary temperature and distance
distance from the sun and orbital period
planetary speed and distance

Explanation:

Kepler's third law, also known as the harmonic law, states that the square of the orbital period of a planet around the Sun is proportional to the cube of the semi - major axis of its orbit (which is related to the distance from the Sun). So it relates the distance from the Sun and the orbital period of a planet. The option "Planetary size and mass" is incorrect as Kepler's third law does not involve size and mass. The option "Planetary temperature and distance" is incorrect as temperature is not a part of Kepler's third law. The option "Planetary speed and distance" is not what Kepler's third law relates; it is about period and distance (semi - major axis).

Answer:

Distance from the sun and orbital period