Yr 10 Universe - Cosmic Background Radiation

Cosmic Microwave Background Radiation is a form of _________.

• Matter

• Energy

• Visible Light

• Water

The "afterglow" of the energy from the origin of the universe that we see today.

• Cosmic microwave radiation

• sunlight

• Doppler effect

• Cosmic explosions

What does CMB stands for?

• Cell and Molecular Biology

• Cosmic Microwave Background

• Neither

• Critical Mass Balance

Who discovered it?

• Arno Penzias

• Robert Wilson

• Georges Lemaitre

• Arno Penzias & Robert Wilson

What is CMB?

• electromagnetic atoms

• radiation that fills the universe and can be detected in every direction

• a faint glow of light that fills the universe

• entire universe

CMB existed before the big bang?

• True

• False

The CMB is:

• the remaining energy from the big bang.
• incredibly hot.
• visible to the human eye.
• only located in certain places in the universe.

The temperature of the universe:

• is constant.

• varies between 20 to 6,000 degrees Fahrenheit.

• has increased to about 10,000 degrees Celsius.

• has cooled to about 2.7 Kelvin.

The universe is ____________ years old.

• 8.13 billion
• 13.8 billion
• 1.83 billion
• 381 million

This is a picture of:

• The CMB.
• The Milky Way.
• The universe in the future.
• A redshifted star.