Astronomy Review

Front

What is a black dwarf?

Back

A black dwarf is a theoretical stellar remnant that occurs when a white dwarf has cooled sufficiently that it no longer emits significant heat or light.

Front

What is a neutron star?

Back

A neutron star is the remnants of a supernova explosion, composed almost entirely of neutrons, and is incredibly dense.

Front

What is a white dwarf?

Back

A white dwarf is a small, dense star that is the remnant of a low or medium mass star after it has exhausted its nuclear fuel.

Front

What is a red giant?

Back

A red giant is a late stage in the life cycle of a star, where it expands and cools after exhausting the hydrogen in its core.

Front

What is a black hole?

Back

A black hole is a region of space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

How does light travel in space?

Back

Light travels in a straight path in space.

Front

What are the layers of the sun from the center outward?

Back

The layers of the sun from the center outward are: Core, Radiative Zone, Convection Zone.

Front

What happens to a low mass star after the main sequence?

Back

After the main sequence, a low mass star becomes a red giant.

Front

What is fusion in stars?

Back

Fusion in stars is the process where hydrogen atoms combine under extreme pressure and temperature to form helium, releasing energy.

Front

What is the role of the core in a star?

Back

The core is the central region of a star where nuclear fusion occurs, producing energy that powers the star.