8th grade science ch9
How much did the nuclear bomb that would be tested in New Mexico cost
2 billion
How many tons of TNT is the bomb equivalent to?
20,000
What number indicates an unstable nuclei
82
Nuclear fission chain reaction
A chain reaction occurs when particles from a nucleus being split hit other nuclei to split.
Switch
A device for making, breaking, or changing the connections in an electrical circuit.
Magnet
Any material that attracts iron and materials that contain iron
Fusion
Atoms joining together
DC current
Current flows in one direction only.
Oppenheimer and Heisenberg finally meet. What is the topic of their discussion?
Discussion about Heisenberg defecting to the U.S.
Who pushed the United States to initiate a plan to develop the atomic bomb?
Einstein
What country was Werner Heisenberg from
Germany
Which country had the head start on building a atomic bomb?
Germany
What was Heisenberg's big lie?
He claimed that he intentionally hindered his work for the NAZI's making him look like a hero.
Why did the Nazi's question Heisenberg's loyalty to Germany
He had affiliations with Jewish scientists - They thought he could be a Jewish sympathizer.
Where was the first atomic bomb dropped?
Hiroshima, Japan
Radioisotope
Isotope with an unstable nucleus
Where did Oppenheimer choose to be the base of operations to build the first atomic bomb?
Los Alamos, New Mexico
When Oppenheimer realizes he will not have enough uranium to build atomic bombs, what ingredient does he choose to use instead?
Plutonium
What is J. Robert Oppenheimer's profession?
Professor
In what field of science did Heisenberg devote himself to after WWI?
Quantum Physic
Cell
Source of power (battery)
What is significant about splitting an atom?
Splitting an atom releases a huge amount of energy. Many atoms could create a weapon - a nuclear bomb.
What was the plan to develop the atomic bomb called
The Manhattan Project
magnetic field
The area of magnetic force around a magnet
What was the nickname for the the nuclear bomb that would be tested in New Mexico
The gadget
Heisenberg wrote a paper on something he called the "uncertainly principle." How was he recognized for this achievement
The noble prize
Fission
The splitting of an atomic nucleus to release energy.
half-life
The time required for one half of the atoms of a radioisotope to emit radiation an decay products
Wire
This conductor connects all parts of the electrical circuit
What was the United State' plan to ensure that Heisenberg does not develop the atomic bomb first?
To Assassinate Heisenberg
What special ingredient is needed to build an atomic bomb
Uranium
electric circuit
a complete, unbroken path through which electric charges can flow
AC current
alternating current
What is the key to a plutonium bomb?
implosion
MRI (magnetic resonance imaging)
is a brain imaging technique that detects magnetic changes in the brain's blood flow patterns.
Compass
navigational instrument for finding directions
What can a radioisotope nuclei do
spontaneously decompose by throwing off particles and radiation.