Term 1 Week 5 2017

Homework

• Activity 12 A, p.194, Mass-Energy Equivalence
• Activity 12B, p.100-200, Nuclear Reactions
• Start Practice Assessment for Atomic & Nuclear Physics

Nuclear Fission

• The breaking up of a larger nucleus into smaller nuclei
• The decrease in mass per nucleon, matches the increase in binding energu per nucleon
• This binding energy per nucleon is a negative energy and represents energy that is lost (radiated away) during the reaction. 
• Binding energy per nucleon also represents the energy that would need to be added to liberate a nucleon from the nucleus

Nuclear Fission

Fission & Fusion

Nuclear Fusion

• The joining of smaller nuclei into a larger nucleus
• The decrease in mass per nucleon, matches the increase in binding energu per nucleon
• This binding energy per nucleon is a negative energy and represents energy that is lost (radiated away) during the reaction. 
• Binding energy per nucleon also represents the energy that would need to be added to liberate a nucleon from the nucleus

Nuclear Fusion

Fusion Energy

Binding Energy per Nucleon

Term 1 Week 4 2017

Homework

• Activity 12 A, p.194, Mass-Energy Equivalence
• Activity 12B, p.100-200, Nuclear Reactions

Nuclear Reaction E = mc²

Nuclear Chemistry Part 1

Nuclear Chemistry Part 2

Binding Energy per Nucleon

Binding Energy per Nucleon is a negative energy or a debt of energy. This is the amount of energy it would take to liberate a nucleon from the nucleus. This energy was originally radiated off when the nucleus formed.

The energy radiated off, the Binding energy, is lost energy and comes from mass that is lost by the nucleons. Mass per Nucleon shows what is left over once a bound nucleon has radiated away some of its mass.

Fission:The breaking up of a larger nucleus into smaller daughter nuclei. Anything above Iron will radiate off energy.

Fusion:
The joining of smaller nuclei into a larger nucleus. Anything below Iron will radiate off energy.

Fission & Fusion

Fission

Term 1 Week 3 2017

Atomic Line Spectra

Atomic Line Spectra and the Electron Shell Transitions they represent

Atomic Line Spectra and the Electron Shell Transitions they represent - put another way

Working with the Rydberg Equation

1/λ = R(1/S² – 1/L²)

λ: Wavelength (m)

R: Rydberg Constant

R = 1.097 x 10⁷ m^-1

S: Series Number

L: Line Number

L > S

Bohr Model of the Atom

mheducation Bohr Model Energy Changes Applet

E = -hCR/n2

h: Planck’s Constant

h = 6.626 x 10-34 m2kgs-1

c: Speed of Light in a vacuum

c = 3.00 x 108 ms-1

R: Rydberg Constant

R = 1.097 x 107 m-1

n: Electron Shell Number

Homework

Activity 11C Atomic Line Spectra

Activity 11D Bohr Model of the Hydrogen Atom

Term 1 Week 2 2017

Photoelectric Effect

Khan Academy Photoelectric Effect

Homework:

• Activity 11A, p. 176, Waves & Photons
• Activity 11B, p. 179-180, The Photoelectric Effect

Term 4 Week 3 2016

A.C. Circuits & Resonance

Mechanics 2015 Question 3 on Cats & Gravity (Conservation of Angular Momnetum L=Iω) 

Examination Paper 2015  AS 91524

Assessment Scedule 2015 AS 91524

Mechanics 2014 Question 3 Translational Motion (2D Momentum) by Cameron Urban
can be found at the bottom of the mechanics page

Waves Exam Revision

NCEA Physics L3 Waves: Introduction

NCEA Physics L3 Waves: Standing waves

NCEA Physics L3 Waves: Standing wave harmonics

NCEA Physics L3 Waves: Standing wave questions

NCEA Physics L3 Waves: Doppler effect

NCEA Physics L3 Waves: Doppler calculations

NCEA Physics L3 Waves: Doppler questions

NCEA Physics L3 Waves: Mulit slit interference

NCEA Physics L3 Waves: Mulit slit calculations


NCEA Physics L3 Waves: Mulit slit questions

Term 4 Week 2 2016

Review of Electricity Mock Exam

NZIP 2016 Exam Phy 3.6 AS 91526

RCL Phase Relationships

MIT Mathlet on RCL Phase Relationships - Interactive

UNSW Animations for RCL Phase Relationships

Impedance of a Capacitor Resistor Circuit

Z = √(XC2 + R2)

θ = tan-1(-XC/R) = tan-1(-VC/VR)

The Capacitor Reactance is 90° behind the Resistance

The Capacitor Voltage is 90° behind the Resistor Voltage

Impedance of a Inductor Resistor Circuit

Z = √(XL2 + R2)

θ = tan-1(XL/R) = tan-1(VL/VR)

The Inductor Reactance is 90° ahead of the Resistance

The Inductor Voltage is 90° ahead of the Resistor Voltage

Term 4 Week 1 2016

Review of Waves Mock Exam

NZIP 2016 Exam Phy 3.3 AS 91523