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