Big G and the Solar System

Kepler’s 2nd Law (Law of Areas) implies that planets moving in elliptical orbits around the sun

The planet within our solar system with the least eccentric orbits.

Which of these four forces is the weakest?

This planet named after the Roman goddess of love spins in the opposite direction of the earth.

The acceleration due to gravity is less at higher elevations than at the earth's surface.

A planet orbiting the Sun sweeps out equal areas during equal time intervals is known as?

The largest planet in our solar system

Only large masses, like planets, exert a gravitational force.

If the distance between two objects is doubled, the gravitational force will

The fastest moving planet in any system of planets orbiting a star is?

The planet within our solar system with two-thirds of its surface covered with water.

Why did Newton think that a force must act on the moon?

Mass is the source of gravity.

Why are planets round?

The force exerted by the Earth on the moon is the same as the moon on the Earth.