PHY ch.5- Chain Reactions, Nuclear Reactors & Atomic Bombs

is a series of events, and each event is caused by the previous one

A chain reaction:

\
\-is always nuclear

\-is a collection of chains attached to each other

\-is a series of events, and each event is caused by the previous one

\-is always extremely dangerousill

illness from Anthrax

Which of the following does not represent exponential growth?

\
\-A computer virus

\-illness from Anthrax

\-spread of small pox

\-biological viruses

about one cup

The smallest container that could contain one critical mass of plutonium is:

\
\-about one cup

\-a large suitcase

\-the trunk of an automobile

\-a table spoon

neutron-induced fission

The foundation of nuclear weapons is:

\
\-carbon-14 isotope

\-boiling water that warms up nuclei

\-powerful lasers

\-neutron-induced fission

Because more neutrons are emitted in plutonium fission than in uranium fission.

The critical mass for a bomb based on uranium fission is different than that for plutonium fission. Why?

\
\-Because they have different densities

\-Because more neutrons are emitted in plutonium fission than in uranium fission.

\-Because uranium is lighter than plutonium

\-Because uranium is heavier than plutonium

uranium

The bomb dropped in Hiroshima used as its fuel:

\
\-hydrogen

\-uranium

\-deuterium and lithium-6

\-plutonium

a Pu-239 bomb

An implosion bomb is required for:

\
\-a thermonuclear bomb

\-a boosted fission weapon

\-a U-235 bomb

\-a Pu-239 bomb

fission fragments

The dangerous radioactivity in fallout comes from:

\
\-neutrinos

\-fission fragments

\-neutrons

\-gamma rays

steam

In a nuclear power plant, the material that runs through the turbine is:

\
\-fission fragments

\-electrons

\-neutrons

\-steam

the meltdown of nuclear fuel

The term China syndrome refers to:

\
\-production of plutonium in China

\-the accident at Chernobyl

\-meltdown of nuclear fuel

\-nuclear terrorism

strontium-90

One of the most dangerous radioactive materials from fallout is:

\
\-plutonium-239

\-deuterium

\-uranium-235

\-strontium-90

 

the nuclear reactor depends on slow neutrons

A nuclear reactor cannot explode like a nuclear bomb because:

  

\-it is carefully designed to shut down quickly.

\-it contains too much uranium.

\-it contains no uranium.

\-the nuclear reactor depends on slow neutrons. 

underground

According to the textbook, the least bad place to put nuclear waste is:

\
\-underground

\-in our food

\-in the Sun

\-all the way into outer space

Pu-239

The material that might be “reprocessed” from nuclear waste is:

\
\-Pu-239

\-U-235

\-U-238

\-tritium

DNA

PCR involves:

\
\-DNA

\-carbon-14

\-tritium

\-heavy water