GCSE Physics - Astronomy: How the Universe is made of Galaxies, Solar Systems, Stars and Planets #85

The video tutorial explains the concept of satellites, distinguishing between natural and artificial types. It then expands to cover the solar system, detailing the planets and their orbits, as well as asteroids and comets. The tutorial further zooms out to discuss galaxies, specifically the Milky Way, and concludes with an overview of the universe, emphasizing its vastness and the distribution of galaxies within it.

What is the primary difference between natural and artificial satellites?

• Natural satellites are used for communication.

• Artificial satellites are not man-made.

• Natural satellites are not man-made.

• Artificial satellites orbit other stars.

Which of the following is NOT a planet in our solar system?

• Jupiter

• Pluto

• Mars

• Venus

What primarily composes asteroids?

• Rock and metal

• Gas and plasma

• Ice and dust

• Water and minerals

Where is our solar system located within the Milky Way Galaxy?

• In the galactic halo

• At the center

• In one of the spiral arms

• At the edge

What force holds the stars together in a galaxy?

• Magnetism

• Electromagnetism

• Gravity

• Nuclear force