Origin And Formation Of The Universe Worksheet printable pdf download

Origin And Formation Of The Universe Worksheet

Origin a nd F ormation o f t he U niverse – P owerPoint n otes

Integrated Science 2

Name:

Period:

Evidence for Big Bang/Inflation

A. Background Radiation

1. In _______________, scientists Penzias and Wilson discovered __________________________

interfering with radio antennae, causing ______________________________________.

2. That radiation is called _______________________________________ and is thought to be

radiation from the ________________________.

3. This radiation can be detected by common ________________ and __________________

antennae. (ex: ______________ on an old television is made up of a small percent of radiation

from the big bang)

B. Red Shift

1. Astronomers observed the “ ___________________” of starlight throughout the universe.

2. This redness is the result of light waves being ______________________ as objects in the

universe move _____________ from each other (the result of the big bang).

• What is the Doppler effect?

-- Doppler Effect is the change in frequency of a wave (such as a sound wave)

when it is observed relative to a moving source (like a car)

--Light waves can also experience Doppler Effect when the source of the light

(such as a ________) is moving

--Astronomers observed that light from distant stars has been _________

towards the red end of the light spectrum.

--This phenomenon is called _____________

--The ______________ away a star is, the more its light is shifted

towards the red end of the spectrum, demonstrating that the universe

is ____________________________

II. Theories on the Formation of the Universe

A. The Big Bang Theory – The theory that the universe began as a ________________ (singularity) and

has been

______________________________________________.

1. The ______________________ was originally packed into one dense sphere of

__________________ about the size of a _____________________.

2. The sphere “exploded”, forming a __________________________________________.

Origin And Formation Of The Universe Worksheet