Components of the universe

What are the main components of a galaxy?

• Gas, Dust, Billions of stars

• Water, Air, Soil

• Planets, Moons, Comets

• Mountains, Rivers, Forests

What force holds a galaxy together?

• Electromagnetic force

• Nuclear force

• Gravitational force

• Frictional force

What does a galaxy contain besides stars?

• Only planets

• Solar systems, small nebulae, and other spatial bodies

• Only black holes

• Only asteroids

What is a black hole?

• A hyper dense celestial object from a collapsed neutron star

• A type of star that emits light

• A planet with a strong magnetic field

• A comet traveling through space

Where is a black hole typically found?

• At the center of large galaxies

• In the outer regions of the solar system

• Near the surface of the Earth

• In the atmosphere of a star

How are galaxies primarily characterized?

• By size

• By color

• By shape

• By age

Which of the following is a type of galaxy?

• Circular

• Spiral

• Rectangular

• Triangular

What is one of the three main types of galaxies?

• Cubical

• Elliptical

• Cylindrical

• Spherical

Which type of galaxy is not one of the main types?

• Irregular/Peculiar

• Spiral

• Elliptical

• Rectangular

What characterizes spiral galaxies?

• A central black hole

• Long sweeping arms radiating from a central bulge

• A flat disk with no arms

• A spherical shape