Astrophysics And Cosmology I - SS3 Physics Past Questions and Answers - page 1
1
Which of the following best describes astrophysics?
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A
The study of celestial objects and their interactions with each other.
B
The study of the universe as a whole.
C
The study of the properties and behaviour of matter and energy in the universe.
D
The study of the formation and evolution of galaxies.
2
What is the most abundant element in the universe?
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A
Hydrogen
B
Helium
C
Carbon
D
Oxygen
3
What is the name of the process that powers the sun?
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A
Nuclear fission
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B
Nuclear fusion
C
Radioactive decay
D
Electron capture
4
What is a supernova?
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A
A type of galaxy that emits large amounts of radiation
B
A star that explodes and releases a tremendous amount of energy
C
A type of black hole that emits X-rays
D
A cloud of gas and dust collapses to form a star
5
What is dark matter?
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A
Matter that emits no light or radiation and does not interact with electromagnetic forces
B
Matter that is composed of neutrinos
C
Matter that is composed of exotic particles
D
Matter that is too cold to emit any radiation
6
What is astrophysics as a field of knowledge?
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8
Which of the following is a type of telescope that uses a large curved mirror to collect and focus light?
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A
Refracting telescope
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B
Radio telescope
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C
Reflecting telescope
D
X-ray telescope
9
Which of the following is not a type of electromagnetic radiation used in observational astronomy?
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A
Visible light
B
Radio waves
C
Ultraviolet light
D
Sound waves
10
Which of the following is a measure of a star's brightness as seen from Earth?
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A
Luminosity
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B
Temperature
C
Magnitude
D
Mass
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