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The Big Bang Model

The Big Bang Model. The most widely accepted theory TODAY on the formation of the universe  …Subject to change!. Make a foldable . Take 3 sheets of computer paper. Stagger them, then fold over to create a foldable with flaps. Staple at the top. Make a title- Space

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The Big Bang Model

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  1. The Big Bang Model The most widely accepted theory TODAY on the formation of the universe  …Subject to change!

  2. Make a foldable • Take 3 sheets of computer paper. • Stagger them, then fold over to create a foldable with flaps. • Staple at the top. • Make a title- Space • Include your name on the front!

  3. Label your Tabs From the TOP… • TITLE PAGE • What the Theory says • Age of the Universe Abundance of H & He • Red Shifting • CBR • Holes in the Theory

  4. What the Theory says… • (I had to use the top of the page, as well as the flap. • 13-15 BYA (billion years ago), the universe expanded rapidly from a single point called a singularity.

  5. What the Theory Says… • The event (which was not an explosion) was very hot and atoms were not yet formed- material cooled and condensed into what was called “quark soup.” • As the material cooled and the heat spread out, atoms of the lighter elements formed (Hydrogen and Helium) • www.jb.man.ac.uk/astronomy/wonder/theme2.html

  6. What the Theory Says… • The universe continues to expand rapidly. • At the Big Bang Event, all matter and energy formed. Before that, there was nothing. • Resulted in the 4 Forces of the Universe: • Gravity • Electromagnetism • Strong Nuclear Force • Weak Nuclear Force www.scienzagiovane.unibo.it/english/darkmatte...

  7. Age of the Universe • Most all models of the age of the universe is 13-15 billion years old (consistent with what the BBT predicts).

  8. Abundance of H & He • The amount of H and He today is abundant- closely match what is predicted there should be from the BBT • hyperphysics.phy-astr.gsu.edu/.../hydhel.html

  9. Red Shifting • Due to the Doppler Effect, a light wave moving away increases in wavelength, shifting it’s color to the red end of the EM spectrum, and appears more red. • (oppositely, objects moving toward you would appear more red as their wavelengths are shortened) • Almost everything we observe in the universe is red shifting, meaning the universe is expanding away from us in all directions.

  10. www.docstoc.com/.../Red-Shift-Blue-Shift Electromagnetic Spectrum & Visible Light

  11. CBR • Cosmic Background Radiation is leftover heat from the initial Big Bang Event. • It is thermal radiation that fills the universe in every direction, detected with a radio telescope. • Universe avg. temp is 2-3° Kelvin.

  12. Holes in the Theory • The BBT • Seems to “defy” the Law of Conservation of Mass and Energy by them being created. • Seems to defy the 2nd Law of Thermodynamics (ENTROPY) that the universe gets more disorderly. • Violated the rule that nothing travels faster than the speed of light.

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