Stars And Galaxy
Stars and galaxy physcical science 102
- 1.
A ball of gases the majority of which is hydrogen
- A.
A star
- B.
The sun
Correct Answer
A. A star -
- 2.
A star is
- A.
Bigger than the moon
- B.
Held together by gravity
Correct Answer
B. Held together by gravity -
- 3.
A fusion reaction at its core which converts hydrogen into helium
- A.
Powers a star
- B.
Creates a star
Correct Answer
A. Powers a star -
- 4.
The center of a star where the nuclear fusion reactions occurs is the :
- A.
Core
- B.
Radiation zone
Correct Answer
A. Core -
- 5.
The region of the sun in which the energy created in the core turns into heat is the :
- A.
Core
- B.
Convection Zone
- C.
Radiation zone
Correct Answer
C. Radiation zone -
- 6.
The region in which heat is transferred from the radiation zone to the surface of the sun:
- A.
Convection Zone
- B.
Radiation zone
- C.
Core
Correct Answer
A. Convection Zone -
- 7.
In the core T= what ?
- A.
2.5 million centigrade
- B.
2.2 milliion centigrade
- C.
15 million centigrade
Correct Answer
C. 15 million centigrade -
- 8.
In the radiation zone T= :
- A.
2.2 milliion centigrade
- B.
15 million centigrade
- C.
2.5 million centigrade
Correct Answer
C. 2.5 million centigrade -
- 9.
In the convection zone T= :
- A.
2.2 milliion centigrade
- B.
2.5 million centigrade
- C.
15 million centigrade
Correct Answer
A. 2.2 milliion centigrade -
- 10.
The outer layer of the sun where the sun and turbulent atmosphere mixes
- A.
Photospehere
- B.
Chromosphere
- C.
Corona
Correct Answer
A. Photospehere -
- 11.
The atmosphere of the sun where solar flares are created
- A.
Corona
- B.
Photospehere
- C.
Chromosphere
Correct Answer
C. Chromosphere -
- 12.
The outer layer of the chromospehre that extends to the edge of solar system
- A.
Chromosphere
- B.
Photospehere
- C.
Corona
Correct Answer
C. Corona -
- 13.
What is the only visible layer of the sun
- A.
Corona
- B.
Atmosphere
- C.
Photospehere
Correct Answer
B. Atmosphere -
- 14.
When the outer layer of the sun press down on the core pulled inward by gravity is called :
- A.
Corona
- B.
Plasma
- C.
Gravitational compression
Correct Answer
C. Gravitational compression -
- 15.
A group of atoms that have lost their electrons and become charged is called :
- A.
Plasma
- B.
Corona
- C.
Gravitational compression
Correct Answer
A. Plasma -
- 16.
What causes hydrogen nuceli to overcome there electrical repulsion and combine to form Helium :
- A.
Gravitational compression
- B.
Plasma
- C.
Energy
Correct Answer
A. Gravitational compression -
- 17.
What is released when Hydrogen Nuclei combine to form Helium:
- A.
Plasma
- B.
Energy
- C.
Gravitational compression
Correct Answer
B. Energy -
- 18.
Every second the sun combines how much Hydrogen into Helium to form energy :
- A.
700 million metric tons
- B.
300,000 thousand metric tons
Correct Answer
A. 700 million metric tons -
- 19.
The sun might be described as a :
- A.
Ball of fire
- B.
Thermonuclear Bomb
- C.
Star
Correct Answer
B. Thermonuclear Bomb -
- 20.
How long does it take energy to travel from the core to the surface of the sun:
- A.
600,000
- B.
300,000 years
- C.
1000 years
Correct Answer
B. 300,000 years -
- 21.
Energy and radiation or created at the cores of the sun and flows to the radiation zone : True or False
- A.
True
- B.
False
Correct Answer
A. True -
- 22.
From the radiation zone enegy flows to the convection zone : True of False
- A.
True
- B.
False
Correct Answer
A. True -
- 23.
In the photosphere energy is converted into heat and light and leaves the star : True or False
- A.
True
- B.
False
Correct Answer
A. True -
- 24.
A star provides a _______ that holds all of the planets in their solar system in their orbit.
- A.
Gravitational compression
- B.
Gravitational center
Correct Answer
B. Gravitational center -
- 25.
A star provides ________ to planets of the suns system
- A.
Plasma
- B.
Energy
Correct Answer
B. Energy -
- 26.
A star converts smaller element into larger elements and expel as dust into the rest of the universe: True or False
- A.
True
- B.
False
Correct Answer
A. True -
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Current Version
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Dec 31, 2012Quiz Edited by
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Apr 29, 2009Quiz Created by
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