Quiz on Uranus and Neptune

Which planets were not known to the ancients?

• Uranus and Neptune

• Jupiter and Saturn

• Mars and Venus

• Mercury and the Moon

What is the tilt of Uranus's axis of rotation?

• 23.5 degrees

• 45 degrees

• 98 degrees

• 177 degrees

What is the primary reason Uranus and Neptune have less hydrogen and helium than Jupiter and Saturn?

• Smaller size

• Higher temperature

• Greater distance from the Sun

• Different chemical composition

What is the primary component of the icy layer around Uranus and Neptune's cores?

• Water-ice

• Iron

• Silicate rock

• Sulfur

What is the offset of Uranus's magnetic field from its center?

• Small

• Large

• None

• Moderate

What phenomenon helped discover Uranus's rings?

• Solar eclipse

• Lunar eclipse

• Star occultation

• Meteor shower

What is the main characteristic of Uranus's atmosphere?

• High activity

• Little activity

• Stormy

• Volcanic

What is the main reason Uranus's surface heating is not extreme?

• Thick atmosphere

• Little atmospheric activity

• High atmospheric activity

• Volcanic eruptions

Which two moons orbit Uranus's rings?

• Titania and Oberon

• Cordelia and Ophelia

• Ariel and Umbriel

• Miranda and Puck

What was Neptune named after?

• A Roman god of the sea

• A Greek hero

• A famous astronomer

• A mythical creature