ESS test - Galaxies and Stars

Front

Who first mathematically understood gravity?

Back

Newton

Front

What is the ecliptic?

Back

The plane on which Earth revolves around the Sun, the plane on which the Sun seems to revolve around Earth, the plane near which each of the planets revolve, and the plane on which the constellations of the zodiac reside.

Front

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

Back

Protons

Front

What force causes star formation and star collapse when it runs out of fuel?

Back

Gravitational force

Front

What process begins once the temperature in the core of a future star gets high enough?

Back

Nuclear fusion

Front

What is the primary force that governs the motion of planets in the solar system?

Back

Gravity

Front

What is nuclear fusion?

Back

A process where two light atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

What is the difference between nuclear fusion and nuclear fission?

Back

Nuclear fusion combines light nuclei, while nuclear fission splits heavy nuclei.

Front

What is a galaxy?

Back

A massive system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.

Front

What is the Milky Way?

Back

The galaxy that contains our solar system.