Make your own free website on Tripod.com

 

Tim Hoover

Cross Sections - A communication from Britain - The New World

Just complete this form. Click on Submit when ready to send.

 

What does a Moderator Do?




What is one advantage and one disadvantage of using plutonium in a nuclear bomb?

A moderator for a nuclear reactor being considered is

beryllium
boron
graphite
all of the above

The "cross section" for a nuclear reaction is a measure of:

the size of the nucleus.
The cross sectional area of a nucleus
The probability of the nuclear reaction occurring.
The total cross sectional area of all hte nuclei in the sample.

 

Compton's Committee on Uranium discussed:

nuclear powered submarines.
nuclear bombs.
scattering radioactive material.

 

A cyclotron:

measures the speed of light.
accelerates charged particles.
measures radioactive decay energies.

 

A mass spectrograph measures an elements what?

 

The "liquid drop" model of the nucleus explained its

 

What was Lise Meitner's major accomplishment?

 

What was Enrico Fermi's major accomplishment?