Chapter 11 Terms Flashcards Preview

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Flashcards in Chapter 11 Terms Deck (25):
1

Achondrite

is a meteorite lacking chondrules

2

Asteroid

is a small, generally rocky, solid body orbiting the sun

3

Asteroid Belt

is a region between the orbits of Mars and Jupiter, in which most asteroid belt

4

Carbonaceous Chondrite

is a type of meteorite containing many tiny spheres

5

Chondrite

is a meteorite containing small spherical grains called chondrules

6

Chondrule

is a small spherical grain embedded in a meteorite

7

Coma

is the gaseous atmosphere surrounding the head of a comet

8

Dust Tail

is a comet tail containing dust that reflects sunlight

9

Fluorescence

is the conversion of ultraviolet light into visible light

10

Ion Tail

is a stream of ionized particles evaporated from a comet then swept away from the sun by the solar wind

11

Kirkwood Gaps

is the regions in the asteroid belt with fewer than the average number of asteroid because Jupiter is removing them

12

Kuiper Belt

is a Region from which some comets come from

13

Meteor

is the bright trail of light created by small solid particles entering the Earth’s atmosphere and burning up as a “shooting star”

14

Meteorite

is the remains of a meter that falls to the Earth

15

Meteoroid

is the technical name for the small, solid bodies moving within the Solar System

16

Meteor Shower

is an event in which many meteors occur in a short space of time in the same direction

17

Near – Earth Object

is an asteroid with an orbit that crosses Earth’s orbit or comes close to it

18

Nucleus

is the core of an atom around which the electrons orbit

19

Oort Cloud

is a vast region in which comet nuclei orbit

20

Radiant

is the point in the sky from which meteors in shower appear to come

21

is the force exerted by radiation on matter

Radiation Pressure

22

Short-Period Comet

is a comet whose orbit period is shorter that 200 years

23

Solar Wind

the outflow of low-density, hot gas from the Sun’s upper atmosphere

24

Tail

is the plume of gas and dust from a comet

25

Trans-Neptunian Object (TNO)

is the numerous small, ice objects orbiting in the outer part of the Solar System beyond the orbit of Neptune