Unit 1+ Unit 2 Earth Space Science

Front

What is Red Shift?

Back

Red Shift is the phenomenon where a star's light is stretched out, making it look red, as it moves away from the observer.

Front

What is a Black Hole?

Back

A Black Hole is the final stage of a star's life cycle, where it is no longer able to sustain nuclear fusion and collapses under its own gravity.

Front

What are absorption lines?

Back

Absorption lines are the fingerprints of the elements, indicating the specific wavelengths of light absorbed by elements in a star's atmosphere.

Front

What evidence supports the Big Bang Theory?

Back

The three big pieces of evidence for the Big Bang Theory are Red Shift, cosmic background radiation, and star age.

Front

What is Gravitational Collapse?

Back

Gravitational Collapse is the process where a star's core collapses under its own gravity, leading to a supernova.

Front

What is Stellar Nucleosynthesis?

Back

Stellar Nucleosynthesis is the process by which elements are formed within stars through nuclear fusion.

Front

What is a Supernova?

Back

A Supernova is a powerful explosion that occurs at the end of a star's life cycle, often resulting in the formation of a neutron star or black hole.

Front

What is Cosmic Background Radiation?

Back

Cosmic Background Radiation is the afterglow radiation from the Big Bang, filling the universe and providing evidence for the Big Bang Theory.

Front

What is the Nebular Theory?

Back

The Nebular Theory explains the formation of solar systems from a rotating cloud of gas and dust.

Front

What is the difference between Red Shift and Blue Shift?

Back

Red Shift occurs when an object moves away from the observer, causing light to stretch, while Blue Shift occurs when an object moves towards the observer, causing light to compress.