The gravitational resonance of which moon is responsible for the gaps found in the rings of Uranus?Group of answer choicesIapetusMimasHyperionEnceladusNone of the above, since the moons listed above all orbit Saturn

Which of the following planet have moon(s) but no rings?(Select all that applies)Group of answer choicesUranusNeptuneEarthMars

Uranus is unique in that?(Select All the answers that are correct)Group of answer choicesIt has the lowest average density of the planets, lower than that of waterIts poles point nearly toward the Sun at some timesIt is the most distant of the Jovian planetsIt is the only Jovian planet that appears blueIt is the only Jovian planet with no rings

Which of the planets in the Solar System has the most moons?UranusJupiterNeptuneSaturn2Gravity provides the centripetal force which causes the Moon to orbit the Earth.  In which direction does this centripetal force act?In the same direction in which the Moon is moving at a given point in timeFrom the Moon to the EarthOpposite to the direction in which the Moon is moving at a given point in timeFrom the Earth to the Moon3A satellite is in a stable circular orbit around the Earth.  A small rocket on board the satellite is used to increase its orbital speed.  What effect will this have on the satellite?It will have no effect on the radius of its orbitIt will cause the radius of its orbit to increaseIt will cause the radius of its orbit to decreaseIt impossible to say how it will affect the radius of its orbit without knowing the initial orbital radius and mass of the satellite4Mercury is approximately 58 million kilometres from the Sun, and has an orbital period of 88 days.  Calculate the speed at which it orbits the Sun.7.63 km/s0.82 km/s47.93 km/s4.14 km/s

Why were the rings of Uranus not observed directly from telescopes on the ground on Earth? How were they discovered?

Which moon of Saturn shows the largest impact crater, relative to its size?Group of answer choicesEnceladusTitanMirandaCallistoMimas