Term 3 Week 3 2016

Term 3 Week 3 2016

Homework

• Ex 6A, p. 188-196, Electric Fields

Millikan's Oil Drop Experiment

• An oil drop balanced between the plates has a net force of zero
• thus the gravitational weight force is equal and opposite to the electric force
• thus mg = Eq and the charge on the oil drop can be calculated

Term 3 Week 2 2016

Term 3 Week 2 2016

Homework

• Ex 6A, p. 188-196, Electric Fields

Using Electric Fields to Treat Cancer

Electrical Vocabulary

Term 3 Week 1 2016

Term 3 Week 1 2016

Homework

• Ex 6A, p. 188-196, Electric Fields

Definition of an Electric Field:

“Any region of space where a charge feels a force.”

Electric field lines are generated by charges. The closer the field lines are together, the stronger the electric field

PhET simulation of Charges, Force and Electric Field lines

Uniform Electric Field

E = V/d

E: Electric Field (Vm-1 or NC-1 depending on the context used)

Electric Force

Fe = Eq

Fe: Electrical Force (N)

q or Q: Charge (C)

Electrical Charge

Electrical Potential Energy

As the charge falls through the Electric Field, the electrical potential energy transforms into kinetic energy.

Ek = Ep

½ mv2 = Vq

Electron Gun

(Cathode Ray Tube)

A Tube Screen TV is an Electron Gun

Cathode Ray Tube and how it works

Term 2 Week 10 2016

Homework

• Ex 3C, Lens, p. 56-63
• Ex 3A, Curved Mirrors, p. 37-44

Ray Diagram

Comparing Lens & Mirror

Using Descartes formula for the Lens & Mirror

Term 2 Week 9 2016

Homework

• Ex 3C, Lens, p. 56-63

Lens Ray Diagrams

• PhET applet
• Simbucket applet

Convex Lens - Converging Lens

Concave Lens - Diverging Lens

Convex - Concave Lens (general)

Convex - Concave Lens (detail)

Ray Diagram

Term 2 Week 8 2016

Homework

• Ex 5A History of Atomic Models This should be complete by now
• Ex 5B Radioactive Decay and Half Life - This should be complete by now
• Ex 5C Nuclear Reactions and Nuclear Energy Calculations - due this week

You will be assessed in Phy 3.5 Atomic & Nuclear Physics AS 91172 this week Thursday 23rd June 2016

The pre-aligned Standard Covering: 

1. Historical models of the Atom; 
2. Half-Life; 
3. but not Nuclear Reactions 

can be found in the links below:

90256 Demonstrate understanding of atoms and radioactivity 2007 - Questions - Answers

90256 Demonstrate understanding of atoms and radioactivity 2008 - Questions - Answers

90256 Demonstrate understanding of atoms and radioactivity 2009 - Questions - Answers

90256 Demonstrate understanding of atoms and radioactivity 2010 - Questions - Answers

90256 Demonstrate understanding of atoms and radioactivity 2011 - Questions - Answers

Naturally Occurring Nuclear Fission Reactor

Term 2 Week 7 2016

Homework

• Ex 5A History of Atomic Models This should be complete by now
• Ex 5B Radioactive Decay and Half Life - This should be complete by now
• Ex 5C Nuclear Reactions and Nuclear Energy Calculations - due next week

Field Trip to Canterbury University for Rutherford's Den and Radioactivity Lab, this Thursday & Friday 16th -17th June 2016

You will be assessed in Phy 3.5 Atomic & Nuclear Physics AS91172 next week Thursday 23rd June 2016