Astronomy Chapter 9

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As saturn rotates,

both its magnetic poles remain almost motionless t its geographic poles

Which of the following temperatures is closest to what you might expect on the planet Jupiter?

-250F

As of 2018, how many space probes had flown past Uranus closely enough to take detailed pictures?

1

As of 2018, how many space probes have flown past Neptune closely enough to take detailed pictures?

1

How many of the moon of Saturn are larger than the Earth's Moon?

1

Uranus rotates on its axis once in about

17 hours

compared to the Earth, the planet Uranus is roughly

4 times as large

The inclination angle of a planet's rotation axis is defined so that a planet that is rotating in the usual direction about an axis that is perpendicular to the plane of the solar system would have an inclination of 0°, while a planet that is rotating in the opposite (retrograde) direction about an axis that is perpendicular to the plane of the solar system would have an inclination angle of 180°. The inclination angle of the planet Uranus is closest to

98 degrees

Which of the following objects is the largest moon of Jupiter?

Ganymede

Which of the following spacecraft were the first to fly past Jupiter?

Pioneer 10 and Pioneer 11

With of the following spacecraft was the first to fly past Saturn?

Pioneer 11

The Cassini- Huygens spacecraft

Went into orbit around the planet Saturn

Jupiter has

a few rings made of dark rocks

The magnetic field of Jupiter indicates that its core must contain large amounts of

a liquid that can conduct electricity

Jupiter has

an atmosphere of hydrogen and helium with no real surface

Neptune has

an atmosphere of hydrogen and helium with some methane

Saturn has

an extensive ring system made of ice-covered rocks

Neptune's magnetic North and South poles are

displaced from its rotation axis poled and also from the center of the planet

Uranus's magnetic North and South poles are

displaced from its rotation axis poles and also from the center of the planet

the rotation rate of Saturn

has not been exactly determined because different methods give somewhat different results

the rotation axis of Neptune is

inclined at an angle to the perpendicular that is similar to Earth's rotation axis

the rotation axis of Saturn

inclined at an angle to the perpendicular that is similar to Earth's rotation axis

The blue color of the planet Uranus is caused by the presence in its atmosphere of

methane

the magnetic field of Saturn is

similar in intensity to the Earth's magnetic field

Jupiter has the most mass of any planet in our Solar System and is also the largest planet. Objects that have still more mass than Jupiter and are not stars are usually

smaller than Jupiter

The magnetic field of Jupiter is

tilted relative to the planet's rotation axis but not offset from its center


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