What was the prevailing belief about the universe before the mid-20th century?

• The universe was expanding rapidly.

• The universe was infinite and ageless.

• The universe was contracting.

• The universe was finite and had a beginning.

What discovery in 1964 provided strong evidence for the Big Bang theory?

• The discovery of cosmic background radiation

• The discovery of dark matter

• The discovery of neutron stars

• The discovery of black holes

Tags

NGSS.HS-ESS1-2

How did the universe expand according to the Big Bang theory?

• It stretched all space everywhere at once.

• It expanded into another dimension.

• It exploded into pre-existing space.

• It expanded into a vacuum.

Tags

NGSS.HS-ESS1-2

What were the first particles to form after the Big Bang?

• Neutrons and neutrinos

• Quarks and gluons

• Photons and positrons

• Electrons and protons

Tags

NGSS.HS-ESS1-2

What happened to most of the neutrons in the early universe?

• They remained as neutrons.

• They decayed into protons.

• They formed helium atoms.

• They combined to form dark matter.

Tags

NGSS.HS-PS1-8

What is the term used to describe the period when there were no stars and light couldn't move around?

• The Starless Age

• The Dark Age

• The Plasma Age

• The Light Age

What allowed visible light to pass through the universe after millions of years?

• The formation of black holes

• The clumping of hydrogen gas and formation of stars

• The cooling of the universe

• The expansion of dark matter

Tags

NGSS.HS-ESS1-2

What do scientists need to understand the very beginning of the universe?

• More powerful telescopes

• A new model of black holes

• A better understanding of dark matter

• A theory that unifies relativity and quantum mechanics

Tags

NGSS.HS-ESS1-2

What is one of the unanswered questions about the universe?

• What is the exact age of the universe?

• Were there universes before our own?

• How many galaxies are there?

• What is the size of the universe?

What is the significance of humans in the context of the universe?

• Humans are insignificant in the universe.

• Humans are separate from the universe.

• Humans are the universe's way of experiencing itself.

• Humans are the creators of the universe.