Quiz on the Universe and Planets

The universe includes:

• all the matter known to exist

• all the space that exists

• nearly 200 billion galaxies

• all of the above

What “fills the space” between galaxies in the universe?

• Dark energy

• Dark matter

• Hydrogen

• Helium

Which of the following is NOT a piece of evidence for the occurrence of the Big Bang?

• The light from distant stars shifts towards the color red

• There is very low energy radiating in every direction throughout the universe

• The universe is starting to contract (get smaller)

• Most stars are made of hydrogen and helium – the first elements created in the universe

What is a galaxy?

• A celestial object that orbits a star

• A hot sphere of plasma that produces its own energy

• A cluster of stars, dust, gas and matter

• A system of planets that orbit a star

Approximately how many light-years in diameter is the Milky Way?

• 100,000

• 200,000

• 1,000,000

• 2,000,000

• None of the above.

Which type of galaxy is very uncommon and makes up less than 25% of the known galaxies?

• Elliptical Galaxy

• Spiral Galaxy

• Irregular Galaxy

• None of the above

What force causes stars to be spherical

• air pressure

• magnetism

• gravity

• mass

The order of the Universe in which we live from biggest to smallest objects is:

• Universe, planets, galaxies, stars, and moons

• Universe, stars, galaxies, solar systems, and planets

• Universe, planets, stars, moons, galaxies

• Universe, galaxies, solar systems, stars, planets, moons

Gas, dust, billions of stars and planets describes what space entity?

• Solar System
• Galaxy
• Moon
• Sun

Everything that exists, including all matter and energy. Mostly consists of empty space.

• a galaxy

• a black hole

• the universe

• the multiverse