2nd Common Assessment Review 2024-25

Front

What is the life cycle of a star like our Sun?

Back

The life cycle of a star like our Sun includes the following stages: Nebula, Main Sequence, Red Giant, Planetary Nebula, White Dwarf, Black Dwarf.

Front

Where do continental air masses form?

Back

Continental air masses form over land.

Front

Approximately how long ago did the universe begin?

Back

The universe began approximately 13.7 billion years ago.

Front

What type of star is Epsilon Eridani according to the Hertzsprung-Russell Diagram?

Back

Epsilon Eridani is a Cool and Dim Star.

Front

What is Gravitational Potential Energy (E_p)?

Back

Gravitational Potential Energy (E_p) is the energy stored in a raised object.

Front

What is a Nebula?

Back

A Nebula is a giant cloud of dust and gas in space, often the birthplace of stars.

Front

What is the Main Sequence in a star's life cycle?

Back

The Main Sequence is the stable phase of a star's life where it fuses hydrogen into helium.

Front

What happens during the Red Giant phase of a star?

Back

During the Red Giant phase, a star expands and cools after exhausting hydrogen in its core.

Front

What is a White Dwarf?

Back

A White Dwarf is the remnant core of a star that has shed its outer layers, typically very hot and dense.

Front

What is a Black Dwarf?

Back

A Black Dwarf is a theoretical stellar remnant that occurs when a White Dwarf cools down and no longer emits significant heat or light.