Deck 49: Comets

Question 1

A comet may have two tails; one is the ion tail the other can be a _____.

A) dust
B) plasma
C) phosphorescence
D) fluorescence

Answer 1

dust

Question 2

This comet reappears every 76 years.

A) Encke
B) Borrelly
C) Halley's
D) Hale-Bopp

Answer 2

Halley's

Question 3

This is the part of the comet that is solid ice:

A) coma
B) nucleus
C) tail
D) ion tail

Answer 3

nucleus

Question 4

A meteor shower occurs when

A) an asteroid breaks up as it enters the Earth's atmosphere.
B) a comet breaks up near the Earth.
C) the Earth passes through a debris filled comet orbit.
D) the Earth crosses the dust filled ecliptic plane.

Question 5

The ________ makes the tail gas of the comet point away from the sun.

Question 6

________ makes the dust tail of the comet point away from the sun.

Question 7

When a comet gives off gases it is said to sublimate.

Question 8

Comets are thought to come from Oort's cloud.