Big Bang

Front

Which statement is true? Options: The galaxies are moving toward us. The galaxies are moving away from us. The universe remains static or unchanged in motion. None of the above

Back

The galaxies are moving away from us.

Front

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

Back

Spectrum

Front

Which elements are most abundant in the visible universe? Options: Hydrogen and Carbon, Carbon and Helium, Hydrogen and Oxygen, Hydrogen and Helium

Back

Hydrogen and Helium

Front

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

Back

Microwaves are found everywhere in the universe.

Front

How does the abundance of hydrogen and helium support the Big Bang Theory?

Back

Hydrogen and helium are in the same ratio throughout the universe.

Front

Galaxies that are redshifted are:

Back

moving away from us.

Front

The universe is expanding! This means that: all of the galaxies are spreading out., the universe must have started from a single point., the universe is cooling down., all of the above.

Back

all of the above.

Front

The Cosmic Background Radiation is:

Back

the remaining energy from the big bang.

Front

Light waves that are stretched out by objects moving apart:

Back

appear more red.

Front

The universe is ____________ years old.

Back

13.8 billion