The Big Bang Theory Unit Test Study Guide

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.

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Match the following terms with their definitions

• All space and the matter space contains.

• Galaxy

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

• Universe

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

• Star

Match the following terms with their definitions

• Transverse and longitudinal waves of energy that can transfer energy without a medium

• Electromagnetic Radiation

• two light nuclei combine to make a nucleus of heavier mass, resulting in the release of energy

• Nuclear Fusion

• The entirety of all wavelengths of light waves

• Nuclear Processes

• Fusion and fission are examples

• Light Spectra

• also known as cosmic microwave background

• Primordial Radiation

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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

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When glaxies have a redshift, they are moving ​ (a)   from eachother. As they move away from each other, they are moving ​ (b)   , and creating ​ (c)   space between galaxies.

• away
• faster
• more

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True or False: The universe is expanding in two directions from many different points.

• True

• False

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Leftover radiation after the Big Bang is known as __________________.

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Define light spectra:

• Wavelengths of just red and blue.

• Wavelengths of red, orange, yellow and green.

• Wavelengths of only some light waves.

• The entirety of all wavelengths of light waves

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What is one piece of evidence that supports the Big Bang Theory?

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What is the another piece of evidence that supports the Big Bang Theory?

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