Deck 36: Other Planetary Systems

Question 1

Dusty and gaseous material orbiting a star is called a(an) _____.

A) exoplanet
B) protoplanetary disk
C) Doppler disk
D) brown dwarf disk

Answer 1

protoplanetary disk

Question 2

Planets orbiting stars are called _____.

A) exoplanets
B) planetary disks
C) proper motion disks
D) transit disks

Answer 2

exoplanets

Question 3

A new theory about many planets orbiting other stars is they formed and then ______ to their present position.

A) migrated
B) transited
C) depleted
D) proper motioned

Answer 3

migrated

Question 4

The Doppler shift method of detecting exoplanets is possible because

A) a star spins faster as planets orbit it.
B) a star spins slower as planets orbit it.
C) a star wobbles as planets orbit it.
D) a star changes color as planets orbit it.

Question 5

Failed stars called _________ are too small to sustain nuclear fusion.

Question 6

It is now thought that many planets formed and then ____ to their present positions.

Question 7

The largest majority of planets found around other stars are earthlike in their masses.

Question 8

We use the Doppler Shift Method to detect exoplanets.