Cosmic Background Radiation
Who discovered this?
Answer: Two scientists that worked for Bell phone company.
Define universe
The universe is everything there ever is, was and will be. Past present and future
Explain blue shift (wavelength and direction)
The shift comes towards us and the wavelengths are shorter and closer together
What does each leter stand for?
S- Science T- Technology E-Engineering M- mathematics
How was it detected
Using a radio satellite
Even after the Big Bang occured, we now know EVERYTHING about the universe. True or False?
Answer: False - Scientists CAN describe what they think occured about a fraction of a sec. after the Big Bang, but not everything was revealed after the explosion.
The universe was cold following the big bang. TRUE or FALSE
FALSE
Explain red shift (wavelength and direction)
When the wavelength of light is moving away from us. The wavelength would be wider and father apart
What shape is the strongest to build using?
Radiation left over from the big bang is called
Cosmic Background Radiation
_____ About how long ago did the big bang occur?
a. 4.6 billion years ago
b. 13.7 billion years ago
c. 10 billion years ago
d. 100 million years ago
B. 13.7 billion years ago
_____ Which is NOT evidence to support the big bang theory?
a. red shift of galaxies
b. galactic clusters
c. cosmic background radiation
d. abundance of light elements (H, He and Li)
B
Explain the doppler effect
It has to do with the wavelength of sound. As it moves towards you, the sound is high pitched. As it moves away the sound fades away
What controls do you use from the keyboard to copy something (words, sentences, pictures, etc.)
Ctrl C
What did the data from the lab help you to understand about this evidence
Temperature decreases but stays constant after it reaches a specific temp
_____ The first elements that were formed in the universe were?
a. hydrogen and lithium
b. hydrogen and helium
c. lithium and helium
d. lithium and beryllium
b
Within how much time did the universe take to go through initial inflation period?
A few seconds
Spectrometer Results
Identify the shift, how you know and which direction is it moving and
Blue Shift due to lines shifting down towards blue side of the light spectrum. This is moving towards us.
What was the first mammal to be cloned?
Sheep (Dolly)
As the universe was still hot and began to cool the fog left over began to subside. It bgan to cool and what was left was low levels of radiation: Cosmic Background Radiation
Explain the big bang
The universe started as this hot dese cluster at a certain point it began to expand. It was extermely hot, but as it cooled things were able to combine and start to form elements which gave rise to other things
As temp went down, components combine to make elements
What type of light shift is used as evidence to support the big bang? How?
Show graph
What was the plant height at 4.5 weeks
12.3 cm