GEI-1, UNIT 4 OUR UNIVERSE

A massive collection of stars, gas, dust, and dark matter bound together by gravity is called a:

• Planet

• Star

• Galaxy

• Nebula

Our Sun is an example of a:

• Planet

• Star

• Moon

• Comet

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

• Mars

• Jupiter

• Asteroid

• Venus

A natural satellite that orbits a planet is known as a:

• Comet

• Moon

• Asteroid

• Meteor

Rocky or metallic objects that orbit a star and are smaller than planets are called:

• Comets

• Moons

• Asteroids

• Nebulae

"Dirty snowballs" that produce a tail of gas and dust when near the sun are:

• Asteroids

• Comets

• Moons

• Planets

A cloud of gas and dust in space where stars are born is called a:

• Black hole

• Nebula

• Galaxy

• Quasar

A region of spacetime with such strong gravity that nothing can escape is a:

• Star

• Planet

• Black hole

• Supernova

The mysterious substance that makes up most of the mass in the universe but doesn't interact with light is:

• Dark energy

• Dark matter

• Normal matter

• Antimatter

The mysterious force causing the accelerated expansion of the universe is:

• Gravity

• Dark matter

• Dark energy

• Electromagnetism