1.0 - The Universe Review

The change in wavelength that allows us to determine if an object if moving toward us or away from us

• Whiteshift and Blueshift

• Redshift and Greenshift

• Redshift and Blueshift

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-1

Galaxies that are REDSHIFTED are:

• actually BLUE

• really NEAR earth

• invisible or not visible

• moving AWAY from us.

Tags

NGSS.HS-ESS1-2

A galaxy showing BLUE SHIFT is ___.

• very cold

• moving TOWARDS OR TO us

• dying

• about to supernova

Tags

NGSS.HS-ESS1-2

The CMB (Cosmic Background Radiation) is:

• the remaining energy from the big bang.

• incredibly cool.

• a cloud of light

• only located in certain places in the universe.

Tags

NGSS.HS-ESS1-2

What are two important pieces of evidence we have for the Big Bang?

• Ptolemy’s work on epicycles and Hubble’s law (the expansion of the Universe)

• Doppler Effect (the redshifting of the Universe) and cosmic background radiation

• The fact that we have multiple Universes to compare and study and cosmic background radiation (CBR)

• The abundance of hydrogen, helium, and lithium found in the Universe and Ptolemy’s work on epicycles

Tags

NGSS.HS-ESS1-2

The universe is ____________ years old.

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

Tags

NGSS.HS-ESS1-2

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

• Red Shift

• Wave Length

• Spectrum

• Microwave

Tags

NGSS.HS-ESS1-2

Define the Doppler Effect

• As sound gets closer to you, it gets louder, the wavelengths get shorter and more frequent.

• As sound gets closer to you, it gets quieter, the wavelengths get longer and less frequent.

• As sound gets closer to you, it gets louder, the wavelengths get longer and more frequent.

• As sound gets closer to you, it gets quieter, the wavelengths get shorter and less frequent.

Tags

NGSS.HS-PS4-1

Match the following terms with their definitions

• A large grouping of stars, planets, gas, and dust in space held together by gravity.

• Star

• A self-luminous celestial body consisting of a mass of gas held together by its own gravity.

• Universe

• All space and the matter space contains.

• Galaxy

When galaxies are moving away from each other that means they have a ​ (a)   . When galaxies are moving towards each other, that means they have a ​ (b)   .

• redshift
• blueshift

Tags

NGSS.HS-ESS1-2