Stars/Sciences/Quiz

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This is a Chandra X-ray Observatory image of the brown dwarf TWA 5B. Credit: NASA/CXC/Chuo U./Y. Tsuboi et al.

Stellar science is a lecture about the science of stars. It is also a mini-lecture for a quiz section as part of the course on the principles of radiation astronomy.

You are free to take this quiz based on stellar science at any time.

To improve your score, read and study the lecture, the links contained within, listed under See also, External links, and in the {{radiation astronomy resources}} and {{Principles of radiation astronomy}} templates. This should give you adequate background to get 100 %.

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

Suggestion: Have the lecture available in a separate window.

To master the information and use only your memory while taking the quiz, try rewriting the information from more familiar points of view, or be creative with association.

Enjoy learning by doing!

Quiz[edit | edit source]

  

1 Which of the following is not a spectral class B star?

Spica
Tau Canis Majoris
Bellatrix
Rigel
Regulus
Achernar

2 Chemistry phenomena associated with a star are likely to be

at least three-quarters of the human genome
hydrogen gas
lithium gas
pressure
ions
plastic

3 Which of the following is not a spectral class A star?

Sirius A
Vega
Bellatrix
Deneb
Altair
Fomalhaut

4 Yes or No, The character, sign, or symbol ⊙ may represent the Sun.

Yes
No

5 Which of the following is not a stellar source?

Betelgeuse
Mercury
Regulus
Mira
Sirius B
Jupiter

6 True or False, Alpha Apodis is a known (SIMBAD) X-ray source.

TRUE
FALSE

7 Which of the following is not a spectral class F star?

Polaris
Alrakis
Bellatrix
Procyon
Canopus
Wezen

8 The standard condition for temperature and pressure is likely to be which of the following?

the Sun
1 atm
0 K
273.15 K
1 isobar

9 Complete the text:

A sample of 23 stars contained objects with (1) strong Be and strong B, (2) weak Be and strong

, (3) strong

and weak B, and (4) weak

and

.

10 Which of the following is not a spectral class G star?

Alpha Centauri A
Capella
Sun
Procyon
Tau Ceti
Kepler-22

11 True or False, The character, sign, or symbol ⊚, ⨀, ⦿, or ⊙ may represent Saturn.

TRUE
FALSE

12 Complete the text:

Match up the stellar image with the radiation astronomy:
meteor astronomy - A
neutrino astronomy - B
gamma-ray astronomy - C
X-ray astronomy - D
ultraviolet astronomy - E
visual astronomy - F
violet astronomy - G
blue astronomy - H
yellow astronomy - I
red astronomy - J
orange astronomy - K
infrared astronomy - L
radio astronomy - M

.

.

.

.

.

.

.

.

.

.

.

.

.

13 Which of the following is not a spectral class K star?

Alpha Centauri B
Epsilon Eridani
Arcturus
Aldebaran
Tau Ceti
Algol B

14 Any object forming on a dynamical timescale, by gravitational instability, is a

15 Complete the text:

Match up the approximate luminosity class with each of the stellar class possibilities below:
0 - A
I - B
II - C
III - D
IV - E
V - F
VI - G
VII - H
giants

.
supergiants

.
white dwarfs

.
main-sequence

.
bright giants

.
subdwarfs

.
subgiants

hypergiants

.

16 Which of the following is not a spectral class O star?

Alpha Camelopardalis
Tau Canis Majoris
Plaskett's star
Sirius A
Pistol Star
Zeta Puppis

17 Complete the text:

Match up the effective temperature with its spectral class:
O - A
B - B
A - C
F - D
G - E
K - F
M - G
L - H
T - I
Y - J
7,000 K

.
2,000 K

15,000 K

.
4,000 K

.
400 K

9,000 K

.
3,000 K

.
5,500 K

45,000 K

.
1,000 K

18 Which of the following is not a spectral class M star?

Betelgeuse
Antares
Proxima Centauri
Barnard's star
VY Canis Majoris
Algol B

19 Complete the text:

Match up the white dwarf classification with its distinctive characteristic:
DA - A
DB - B
DC - C
DO - D
DQ - E
DX - F
DZ - G
a helium-rich atmosphere, indicated He II spectral lines

.
a helium-rich atmosphere, indicated He I spectral lines

.
spectral lines are insufficiently clear to classify

.
no strong spectral lines

.
a metal-rich atmosphere

.
a carbon-rich atmosphere

a hydrogen-rich atmosphere

.

20 True or False, Regulus is a known (SIMBAD) X-ray source.

TRUE
FALSE


Hypotheses[edit | edit source]

  1. SIMBAD records all the catalogs that contain a specific star.

See also[edit | edit source]

External links[edit | edit source]

{{Principles of radiation astronomy}}{{Radiation astronomy resources}}