Chapter 15 small solar system bodies

Question 1

achondrite

Answer 1

contains no chondrules

Question 2

Amor asteroid

Answer 2

passes inside mars’s orbit

Question 3

Aten asteroid

Answer 3

earth crossing asteroids

Question 4

carbonaceous chondrite

Answer 4

contain considerable amounts of water

Question 5

chondrite

Answer 5

contains chondrules

Question 6

chondrule

Answer 6

spheres of silicate rock mm in size

Question 7

coma

Answer 7

ball of outflowing gas surrounding the nucleus

Question 8

cosmic ray

Answer 8

cause neclear reactions when they strike meteorites, an only penetrate 1m deep

Question 9

cosmic ray exposure age

Answer 9

length of time that has passed since the meteorite broke off of a larger body

Question 10

C-type asteroid

Answer 10

very dark, low reflectivity

Question 11

M-type asteroid

Answer 11

reflective like metallic iron or nickle

Question 12

Oort cloud

Answer 12

swarm of long period comets orbiting the sun

Question 13

plasma tail

Answer 13

made of ions and electrons

Question 14

radiant

Answer 14

spot in the sky where meteors seem to originate

Question 15

reflectance specta

Answer 15

how well an asteroid reflects light of different wavelengths

Question 16

short-period comet/long

Answer 16

orbital periods shorter than 200 years/longer than 200

Question 17

solidification age

Answer 17

amount of time that has passed since the meteorite has solidified from its molten state.

Question 18

S-type asteroid

Answer 18

Olivine mineral

Question 19

Trojan asteroid

Answer 19

two swarms of asteroids that are in Jupiter’s orbit around the sun

Question 20

V-type asteroid

Answer 20

Vesta, strong absorption abilities due to pyroxene

Question 21

zodiacal light

Answer 21

glow produced by dust particles from comets passing by earth