Final Exam Practice Test

Front

What is the correct order of the following events in the formation of a star? Collapse, spinning, flattening, condensation, accretion.

Back

Collapse > spinning > flattening > condensation > accretion.

Front

What does Kepler's First Law of Planetary Motion state?

Back

The path around the sun is an ellipse; ellipses have eccentricity.

Front

What factor does the lifecycle of a star depend on?

Back

Size.

Front

Which layer of the Sun is known as the radiation zone?

Back

The layer located at letter C.

Front

Which layer of the Sun is referred to as the core?

Back

The layer located at letter B.

Front

Define 'accretion' in the context of star formation.

Back

Accretion is the process by which particles collide and stick together, forming larger bodies.

Front

What is an ellipse?

Back

An ellipse is a geometric shape that looks like a flattened circle, defined by two focal points.

Front

Explain the significance of the photosphere in the Sun's structure.

Back

The photosphere is the visible surface of the Sun, from which light is emitted.

Front

What is the corona of the Sun?

Back

The corona is the outermost layer of the Sun's atmosphere, visible during a solar eclipse.

Front

How does the size of a star affect its lifecycle?

Back

Larger stars have shorter lifecycles and end in supernovae, while smaller stars can live much longer.