Circular Motion and Centripetal Force Quiz

Centripetal force (correct)

Frictional force

Gravitational force

Electromagnetic force

The line joining the planet and the Sun sweeps equal areas in equal intervals of time.

The period of revolution of a planet around the Sun is directly proportional to the mean distance of the planet from the Sun.

Planets revolve around the Sun in circular orbits.

The orbit of a planet is an ellipse with the Sun at one of the foci of the ellipse. (correct)

The square of the period of revolution of a planet around the Sun is inversely proportional to the mean distance of the planet from the Sun.

The period of revolution of a planet around the Sun is directly proportional to the mean distance of the planet from the Sun. (correct)

Planets revolve around the Sun in circular orbits.

The line joining the planet and the Sun sweeps equal areas in equal intervals of time.