Chapter 13 Example Quiz PDF

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Chapter 13 Example Quiz Uranus was discovered by Galileo thousands of years ago.

with a radio telescope.

after examining perturbations in Neptune's orbit.

less than 250 years ago.

Small deviations in a planet's orbital motion show we don't fully understand gravitational forces yet.

indicate the presence of an extensive atmosphere.

indicate the presence of a powerful magnetic field.

imply the nearby presence of a massive body

show the planet's orbit isn't stable.

Which of these is true about the seasons of Uranus? With a tilt of 29 degrees, they are not that different from our solstices and equinoxes.

Its strange tilt produces extreme seasonal variations, especially at the poles.

At the Uranian equator, the Sun would pass overhead every sixteen hours.

At the Uranian pole the Sun sets every 16 hours during the summer and winter.

There are nor season at the poles.

A day at the north pole of Uranus lasts about 7 hours.

about 8 hours.

about 21 years.

about 42 years.

about 84 years

Neptune and Uranus have a bluish tint because: at their distances, the Sun appears blue, the red absorbed by dust in the ecliptic.

they are far away and distance makes objects appear bluish.

their atmospheres contain methane, which absorbs red light.

their atmospheres contain hydrogen and helium.

ammonia ice reflects blue light better than any other color.

Although the atmospheres of Uranus and Neptune are very similar, the atmosphere of Neptune contains more Hydrogen.

Helium.

Methane.

Ammonia.

Nitrogen.

Which statements about the magnetic fields of Uranus and Neptune is FALSE? Neither fits the Dynamo model very well.

Uranus' field is tilted 60 degrees off its already tilted rotational axis.

Neptune's field is tilted 47 degrees to its more conventional rotational axis.

Both pass directly through the cores of their planets, like all other fields.

Neptune is smaller and its magnetic field is weaker...