Cosmic

State True or False

A flat Universe will also continue to expand at an ever- decreasing rate, but slower than an open Universe.

• True

• False

What is happening to the expansion of the Universe?

• It has stopped

• It is slowing

• It is staying the same

• It is speeding up

Tags

NGSS.HS-ESS1-2

The theory of the origin of the universe that is most popular among space scientists suggests that our universe originated how long ago?

• 10 – 20 centuries ago

• 10 – 20 thousand years ago

• 10 – 20 million years ago

• 10 – 20 billion years ago

Tags

NGSS.HS-ESS1-2

Cosmic Microwave Background Radiation (CMBR) is the term used to describe the residual microwave radiation observed everywhere in the universe that seems to have no single source. The observation of CMBR is used as evidence of the Big Bang Theory because it is believed to be -

• the result of collisions between neighboring galaxies.

• particles of dust that have absorbed radioactivity.

• radiation left over from the rapid expansion of matter.

• light energy emitted from the source of the Big Bang.

Tags

NGSS.HS-ESS1-2

As part of the Big Bang Theory of the formation of the universe, scientists believe that over time, the universe is continually changing in what characteristic?

• From more dense to less dense

• From rotating to stationary

• From cooler to hotter

• From very large to very small

Tags

NGSS.HS-ESS1-2

All the stars we observe from Earth emit light that is shifted, to varying degrees, to longer wavelengths. This evidence is used to support the Big Bang Theory because it shows that stars we observe -

• are all older than our Sun.

• are made up of helium gas.

• use nuclear fusion to make light.

• are moving away from us.

Tags

NGSS.HS-ESS1-2

The Big Bang Theory suggests that our universe formed as the result of a huge explosion that sent all existing matter flying outward from a single point. The Big Bang Theory is supported by which of these observations?

• All matter in the universe is composed of the same atoms.

• All galaxies appear to be moving away from all other galaxies.

• All stars in the universe are approximately the same age.

• The universe is relatively the same temperature in all locations.

Tags

NGSS.HS-ESS1-2

First Scientist to to present observational evidence that supported that the universe is expanding. (aka... red shift)

• Edwin Hubble

• Albert Einstein

• George Gamow

• Georges Lemaitre

Tags

NGSS.HS-ESS1-2

What were the original two elements in our universe?

• Hydrogen and Lithium

• Helium and Oxygen

• Helium and Hydrogen

• None of the above

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

The light we see from objects in the sky are from the past

• True

• False

Tags

NGSS.HS-PS4-3