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Physics Core/AP 1 and 2

Chapter 31: 1-4 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

Nuclear Fission and Fusion

Homework

Reading Preparation

Text Reading: Giancoli, Physics - Principles with Applications, Chapter 31: Sections 1 to 4

Study Points

Key Equations

PrincipleEquationVariables
Q-value or nuclear reaction energyReaction: a + X → Y + b
Q = KEb + KEY - KEa - KEX
Q = (mb + mY - ma - mX)c2
Q: net energy change
X: initial nucleus
Y: final nucleus
a:projectile particle
b: emitted particle
Uranium Fission (general) n   +   U 92 235     U 92 236     X 1   +   X 2   +   neutrons

Example

n   +   U 92 235     Ba 56 141   +   Kr 36 92    +   3 n
U: uranium isotopes
X1 and X2: fission fragments
Hydrogen fusion
Two-step process
H   +   H   1 1 H   1 2   +   e +   +   ν 1 1 H   +   H   1 2 He   2 3   +   γ 1 1 H: hydrogen
He: Helium
e+: positron
γ: gamma radiaton

Web Lecture

Read the following weblecture before chat: Fission and Fusion Reactions

Study Activity

Use the FLASH simulation for the proton-proton fusion reaction at the University of Nebraska-Lincoln Astronomy lab to see how the sun uses hydrogen fusion to produce helium.

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!