astronomy quiz

The Big Bang Theory states that all matter in the universe was once condensed into a point called a

Galactic disk

Our solar system is the ___ galaxy, which display ____

Milky Way, spiral

Persistent noise discovered in 1965. This is caused by weak radiation from space is referred to as.

Cosmic background radiation

According to scientist, most of the universe is made up

Dark energy

Which color from the visible light region of the electric magnetic spectrum has the shortest wavelength

Blue

An object moving towards you would display what phenomena

Blueshift

Electromagnetic waves can

Travel at the speed of light, travel through space, and transfer energy

Which sentence explains how the frequency in the wavelength of electromagnetic waves are related

As wavelength decreases frequency increases

Which of the following is the best description of wavelength?

The distance from one way to the next

Which outcome describes a universe that stops, expanding and begins to contract

Closed universe

Describe how the Doppler effect supports the Big Bang theory

The Doppler fact tells us that light from galaxies is red shifted meaning that galaxies are moving away from us, supporting the Big Bang theory because the universe is expanding.

How to know if a star is moving towards us

If it’s closer to the blue

How to know if a star is moving away from us

If it’s closer to the red

What does hubbles law describe

That the faster galaxies are moving the farther they are away

First step of the formation of the solar system (nebular theory and Kepler’s laws)

A cloud of gas and dust formed between two stars

The second step

Cloud pull together to form a large, tightly packed, spinning disc

Third step

Center of disk heated to about 15 million degrees Celsius

Fourth step

Nuclear fusion began, and the sun formed at the center of the solar system

Fifth step

Planetesimals smashed together to form protoplanets

Sixth step

Extra matter came together to form small planet like objects

The closer a planet is to the sun

the faster it moves

The farther the planet is from the sun the ___

Slower it moves

Why?

Because the suns gravity is stronger when closer to it

What law does this illustrate

Keplers law