Latihan

Front

The Sun produces energy through nuclear fusion in its core, where hydrogen nuclei fuse to form helium. This process releases energy that we perceive as sunlight and heat.

Back

True

Front

What process does the Sun use to produce energy?

Back

Nuclear fusion

Front

A galaxy is a massive ball of burning gas, while a star is a collection of billions of stars.

Back

False

Front

What is a light year used to measure?

Back

The distance light travels in one year

Front

A high-mass star becomes a red giant and ends its life cycle as a white dwarf.

Back

False

Front

What happens to a low-mass star at the end of its life cycle?

Back

It becomes a red giant and then a white dwarf

Front

What two forces maintain equilibrium in a stable star?

Back

Gravitational force and thermal pressure

Front

Redshift occurs when light from a galaxy is stretched to longer wavelengths as it moves away from us, indicating that the galaxy is receding.

Back

True

Front

How does the concept of redshift support the idea of an expanding universe?

Back

It indicates that galaxies are moving away from us

Front

What is evidence supporting the Big Bang Theory?

Back

The redshift of distant galaxies