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VIDEO
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Black_hole
Mass/Energy Notes
Conservation Of Mass and Energy -
Matter can’t be
Created or
Destroyed
... but can be
converted
into
energy
according to the formula ...
Mass (kg) to
Energy (J)
E
=
m
c2
Units (J)
(Kg)
m/s
c - speed of light = 3.00 x 108 m/s
Einstein talks
about E = mc2
Nuclear Fireball
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A neutron splits a uranium nuclei.
What is this nuclear reaction called?
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Fission - splitting of a large nuclei into 2 or nuclei
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Ex)
***Energy that can be obtained from converting 2.0 Kg to
energy?
E
=
m
c2
Units (J)
(Kg)
m/s
E =
2.0 Kg(3.00 x 108 m/s)2
E = 1.8 x 1017 Joules
Our Sun
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To convert universal mass units
to
energy in MeV
1 proton
(universal mass unit)
converts
to 9.31 x 10 2
Mev
or
931 MeV
(p. 1 Reference)
(Mass/Energy Relationship)
Typical Regents Question ...
Ex) How much energy can be
generated when 2 universal mass units are completely converted into
energy ?
1 universal mass unit = 931 MeV
Answer: 1862 MeV
(each universal mass unit
converted produces 931 MeV)
Enrichment
The Elements: Forged in Stars
VIDEO
NOVA
Elements Forged_in_Stars
Author - "Fusion,
which occurs when atomic nuclei combine to form new elements, is
extremely powerful. All the stars in the universe, including the Sun,
are nuclear furnaces fueled by fusion. Through fusion, stars are
responsible for forming all the naturally occurring elements heavier
than hydrogen and helium -- before stellar nucleosynthesis, only the
lightest elements existed in the universe. This video segment adapted
from NOVA illustrates the critical role that stars play in creating the
elements."
VIDEO
Finely_Tuned_Universe
creationofuniverse.com
VIDEO
A is for Atom
This movie is part of the collection:
Prelinger Archives
Producer: Sutherland
(John) Productions
Sponsor: General
Electric Company
Audio/Visual: Sd, C
Atomic-nuclear: Energy ;
Physics ;
Animation
Creative Commons license:
Public Domain
©Tony Mangiacapre., - All Rights Reserved
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