Gaseous Planets

Question 1

what type of planets is large and far from sun

Answer 1

gaseous

Question 2

gaseous planets are ____ in density

a) high
b) low

Answer 2

low

Question 3

gaseous planets features

Answer 3

many moons
rings
fast and differential rotation
strong magnetic field

Question 4

gaseous planets atmospheres

Answer 4

vary in color from different gases and ice crystals (methane = blue, sulfur = yellow, etc.)

Question 5

jupiter radius, volume, mass, and distance from sun

Answer 5

11.2 of earths radius, 1400x earths volume, 318x earths mass, 5.2 AU from sun

Question 6

jupiter belts

Answer 6

colorful from sulfur and phosphorus created from convection of turbulent rising and sinking gas

Question 7

great red spot

Answer 7

on jupiter, giant storm at least 300 years old, recently shrinking.

Question 8

jupiter magnetic field

Answer 8

20,000x earths

Question 9

jupiter moons

Answer 9

79 including 4 galilean moons: io, europa, ganymede, callisto.

Question 10

4 galilean moons

Answer 10

io: active volcanoes, constant geological activity from tidal stress heating, trail of plasma along orbit.

europa: cracked icy surface, water underneath.

ganymede: largest moon in solar system, larger than mercury.

callisto: similar to ganymede.

Question 11

jupiter moon formation

Answer 11

capture (broken asteroids)

Question 12

jupiter rings

Answer 12

thin, faint, dark

Question 13

saturn radius, volume, mass, and distance from sun

Answer 13

9.4 of earths radius, 830x earths volume, 95x earths mass, 9.45 AU from sun.

Question 14

saturn features

Answer 14

least dense, most spectacular rings, thicker clouds

Question 15

saturn color and axis

Answer 15

less color than jupiter and tilted, flat from rotation.

Question 16

saturn moons

Answer 16

82+, many small ones discovered recently

Question 17

saturn rings

Answer 17

made of dirty water ice

cassini division (largest of 3 gaps between rings)

unstable

probably replenished by collisions

Question 18

uranus radius, volume, mass, distance from sun

Answer 18

4 earths radius, 64x earths volume, 15x earths mass, 19.2 AU from sun.

Question 19

true or false

uranus was unknown in the past.

Answer 19

true

Question 20

uranus tilt

Answer 20

approx. 98 degrees

Question 21

uranus atmosphere, color, temp

Answer 21

blue-green from methane clouds, no distinct clouds/storms, not much internal heat produced

Question 22

uranus moons

Answer 22

27 known ones, some strange (shepherd, eccentric, retrograde, highly inclined orbits)

Question 23

uranus rings

Answer 23

dark and narrow

Question 24

neptune radius, volume, mass, distance from sun

Answer 24

3.8 earths radius, 60x earths volume, 17x earths mass, 30.1 AU from sun

Question 25

neptune color, atmosphere

Answer 25

blue from methane, cloud bands and spots, used to have great dark spot that disappeared but new smaller one observed.

Question 26

neptune moons

Answer 26

at least 14 including triton which has atmosphere with active ice volcanoes.

Question 27

neptune rings

Answer 27

3 narrow, 1 wide