Big Bang Theory (Review 2)

Visible light emitted from a star or galaxy can be separated into a band of colors, called a ________.

• Spectrum (or spectral lines)

• Microwave

• Radiation

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

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

How is the "Big Bang" described?

• an explosion

• an expansion

• a contraction

The change in wavelength of light or sound that is due to the relative motion of the source towards or away from an observer.

• Radar Effect
• Doppler Effect
• Light Effect
• Reflection

What type of radiation in the universe is believed to the residue of the early universe?

• cosmic background microwave

• infrared rays

• radio waves

• ultraviolet waves

Where does the universe originate according to the big bang theory?

• cosmic explosion

• light elements

• nucleosynthesis

• singularity

What happens to the brightness of a galaxy that is moving towards the Earth?

• increase

• decrease

• increase in light year

• shifted in spectrum

According to the Big Bang Theory, all matter and energy were compressed at a single point called a ________ at the time of the expansion.

• Proton

• Electron

• Nebula

• Singularity