nuclear energy & atomic bombs

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NUCLEAR ENERGY & ATOMIC BOMBS By Jen Sterner

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Nuclear Energy & Atomic Bombs. By Jen Sterner . What is an Atomic Bomb?. It is a weapon in which an enormous amount of energy is released through nuclear fission or fusion. They are very dangerous!! Atomic explosions can be made through fission and fusion of Uranium-235. . - PowerPoint PPT Presentation

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Page 1: Nuclear Energy & Atomic Bombs

NUCLEAR ENERGY & ATOMIC BOMBS

By Jen Sterner

Page 2: Nuclear Energy & Atomic Bombs

What is an Atomic Bomb?It is a weapon in which an enormous amount

of energy is released through nuclear fission or fusion.

They are very dangerous!!Atomic explosions can be made through

fission and fusion of Uranium-235.

Take a guess! Discuss it with

a friend.

Page 3: Nuclear Energy & Atomic Bombs

Atomic bombs become famousDuring World War II, Hitler

was developing a plan to create

the atomic bomb.

A Jewish scientist was afraid what Hitler might

do when he had the atomic bomb, so he

wrote President Roosevelt convincing him to try and beat Germany to the first

atomic bomb.

In 1942, Roosevelt

gave the ok for scientists

to start the “Manhattan Project”, the

search for the atomic bomb

in science.

Albert Einstein

even signed

the letter to

Roosevelt!

Even after Germany had given up, America pursued on. After

the first test, the scientists realized just how much power

they were working with was far more than they had originally

imagined.

1

5

4

32

Page 4: Nuclear Energy & Atomic Bombs

Atomic History Con’t.After Hitler’s suicide, the

scientists were sure that such a weapon was no

longer necessary.

The scientists wrote a strong petition to the

US government expressing their

opinion.

76

He then gave the order for the bomb to be dropped.

Unfortunately, President

Truman ignored their request and insisted

that their work had not gone to

waste.

9

8

WOW!

Page 5: Nuclear Energy & Atomic Bombs

How are atomic bombs made? (Fusion)

Step

1Isotopes of hydrogen are smashed together at high pressures.

Step

2This creates helium, and releases a LOT of energy.

Step

3The energy can be used for weaponry.

Page 6: Nuclear Energy & Atomic Bombs

How are atomic bombs made? (Fission)

Step

11 neutron splits an atom. St

ep 2After it’s split, another neutron is released.

Step

3Then that neutron splits another, until all the atoms are split.

Page 7: Nuclear Energy & Atomic Bombs

Fission Model

Page 8: Nuclear Energy & Atomic Bombs

Fusion Model Nuclear Fusion can

also be found in the sun!!

Page 9: Nuclear Energy & Atomic Bombs

So why do I care?Atoms, which are so unbelievably small that they

needed a new measurement to express their size, are able to create a weapon that can cause:

To learn move about the effects of atomic bombs, visit:http://library.thinkquest.org/26742/nuclear.html

Blast wave

s

Residual

nuclear radiati

on

Initial nuclear radiati

on

Thermal

Radiation

Page 10: Nuclear Energy & Atomic Bombs

Are atomic bombs dangerous/illegal?

The American government has a special license to use nuclear bombs.

The radioactive materials needed to build an atomic bomb are illegal to obtain, so building one is as well.

Also, by having an atomic bomb, you can hurt others. So yes, it’s pretty much illegal.

Page 11: Nuclear Energy & Atomic Bombs

What are they used for?Atomic bombs are used simply for weaponry and war means.

However, some are built completely for study.

Page 13: Nuclear Energy & Atomic Bombs

Games!Try my Testmoz! http://testmoz.com/6499 Play a fun game about nuclear fission!

http://togetherville.com/games-for-kids/nuclear-fission-balls?m=1

Do a puzzle with a uranium atom! http://www.neok12.com/slide-puzzle/Atom-05.htm

Page 14: Nuclear Energy & Atomic Bombs

Learning Links:Watch some nuclear videos!

http://www.neok12.com/Nuclear-Power.htm Learn about nuclear fusion in the sun!

http://www.goalfinder.com/product.asp?productid=85

http://www.teachervision.fen.com/tv/printables/concepts/PStransparencies_9.pdf

Page 15: Nuclear Energy & Atomic Bombs

The End