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Physics Core/AP 1 and 2

Chapter 30: 1-7 Assignment

Course Materials are always under revision! Weblecture content may change anytime prior to two weeks before scheduled chat session for content.

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Homework

Physics 30: 1-7 Racioactive Decay Processes

Homework

Reading Preparation

Text Reading: Giancoli, Physics - Principles with Applications, Chapter 30, Sections 1 to 7

Study Points

Key Equations

PrincipleEquationVariables
Nuclear Sizes r   ( 1.2     10 15   m ) ( A 1 3 ) A: Number of nucleons (protons + neutrons)
Disintegration Energy Q   =   M P c 2     (   M D   + m a )   c 2 MP: mass of parent particle
MD: mass of daughter particle
ma: mass of alpha particle
Alpha Decay N Z A   N ' Z A 2 4   +   He 2 4 N: parent particle
N': daughter particle
He: alpha particle
Beta Decay N Z A   N ' Z A + 1   +   e +   ν N: parent particle
N': daughter particle
e-: electron
ν: neutrino
Positron Decay N Z A   N ' Z A 1   +   e +   +   ν N: parent particle
N': daughter particle
e+: positron
ν: neutrino
Electron capture N Z A   +   e N ' Z A 1    +   ν N: parent particle
N': daughter particle
e-: electron
ν: neutrino
Gamma Decay N Z A   N Z A   +   γ N*: excieted parent particle
N: normal particle
γ: gamma ray photon<

Web Lecture

Read the following weblecture before chat: Nuclear Decay

Study Activity

Use the Types of Radiation virtual general chemistry lab at the University of Colorado site to simulate radioactive experiments. Read the lab manual (PDF), then follow its instructions to determine from the effective types of shielding which kinds of radiation each material puts out.

Chat Preparation Activities

Chapter Quiz

Lab Work

If you want lab credit for this course, you must complete at least 12 labs (honors course) or 18 labs (AP students). One or more lab exercises are posted for each chapter as part of the homework assignment. We will be reviewing lab work at regular intervals, so do not get behind!