ESS test - Galaxies and Stars

Front

What type of star is our Sun?

Back

Our Sun is classified as a small star.

Front

How many exoplanets have been confirmed around other stars?

Back

Approximately 5,000 exoplanets have been confirmed around 3,000 other stars.

Front

Where are the nuclei of elements larger than iron created?

Back

The nuclei of elements larger than iron are created in a supernova.

Front

What does every atom of the same element have the same number of?

Back

Every atom of the same element always has the same number of protons.

Front

What happens to the Sun when it runs out of fusion fuel in the core?

Back

When the Sun runs out of fusion fuel in the core, it will initially shrink under gravitational force.

Front

What is a galaxy?

Back

A galaxy is a massive system that consists of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

Front

What is the difference between a star and a planet?

Back

A star is a luminous celestial body made of plasma that generates energy through nuclear fusion, while a planet is a celestial body that orbits a star and does not produce its own light.

Front

What is a supernova?

Back

A supernova is a powerful and luminous explosion of a star, marking the end of its life cycle, often resulting in the creation of heavier elements.

Front

What is the significance of the number of protons in an atom?

Back

The number of protons in an atom determines the element's identity and its position on the periodic table.

Front

What is an exoplanet?

Back

An exoplanet is a planet that orbits a star outside our solar system.