Cosmology GCSE

Which description is considered most accurate regarding what actually happened during the Big Bang?

• Two galaxies collided causing an immense explosion as stars crashed into one another

• All of what would become the universe was concentrated in a single small point, or singularity, which rapidly expanded into what is now stars, planets, galaxies, matter, and energy.

• All matter emerged from a massive black hole at the center of the universe.

• Parts of the sun were ripped off by massive internal explosions and were thrown into space where they cooled to become other things, like plants, comets, and other galaxies.

If something that makes light is moving away from you, it spreads the wavelengths of light out. This application of the Doppler effect is known as ___.

• blue shift

• green shift

• red shift

• black shift

A date that is commonly accepted by Big Bang theorists for the Big Bang is ____ years ago.

• One hundred thousand

• Two hundred and fifty million

• Thirteen point seven billion

• Ten trillion

Tags

NGSS.HS-ESS1-2

Most distant galaxies show a red shift. This is considered evidence that the universe is ___.

• getting cooler

• expanding

• condensing into a small point

• swirling around

Observations of space indicate that most matter in the universe is ___.

• hydrogen, helium, and dark matter

• gold and plutonium

• oxygen and water vapor

• carbon

Cosmic Microwave Background Radiation is a form of _________.

• Matter

• Energy

• Visible Light

• Water

How does Cosmic Microwave Background Radiation support the Big Bang Theory?

• Microwaves are found everywhere in the universe.

• Microwaves occurred at the time of the Big Bang

• Microwaves are useful in our everyday lives

What does the Big Bang theory suggest?

• The universe was just there
• The Milky Way is the only solar system
• The universe is continually expanding
• The universe is collapsing in toward a single point

Why is the light from distant galaxies red-shifted?

• They produce more red light than nearby galaxies

• They are moving away from us

• The longer wavelengths are filtered out more by dust

• They are moving toward us

What were the original two elements in our universe?

• Lithium and Carbon
• Hydrogen and Neon
• Helium and Chlorine
• Hydrogen and Helium