Term 3 Week 6 2018

Homework:

• Ex 6A, p.188-196 Electric Fields

Electron Gun

Cathode Ray Tube (CRT)

Electron Gun

Cathode Ray Tube (CRT)

Discovery of the Electron: Cathode Ray Tube Experiment

Cathode Rays Leads to Thomson's Model of the Atom

Parker Solar Probe - Use of CRT

Millikan's Oil Drop Experiment

Charge of an Electron - Millikan's Oil Drop Experiment

Term 3 Week 5 2018

Homework:

• Ex 6A, p.188-196 Electric Fields

PhET - Charge & Electric Fields - App

Basics of Electric Charge

Definition of an Electric Field:

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

A positive charge will feel a force with the electric field direction

A negative charge will feel a force against the electric field direction

Fe = Eq

Electric Field

Electric Potential (Voltage)

What is Voltage?

Uniform Electric Field

E = V/d

Uniform Electric Fields

Term 3 Week 4 2018

Homework

• Ex 3D, p.66--67, Wave Properties
• Ex 3E, p.69-70, Diffration
• Ex 3F, p.73-75 Superposition
• Ex 3G, p.76-78 Two Point Source Interference
• Ex 3H, p.81-83 Waves on a String
• Ex 3I, p.85-87 Wave Refraction on a String
• Ex 3B, p.47-52, Refraction
• Ex 3C, p.56-63, Lens
• Ex 3A, p.37-44 Curved Mirror

Plane & Curved Mirrors

Lenses

Ray Diagram

Comparing Lens & Mirror

Using Descartes formula for the Lens & Mirror

Term 3 Week 3 2018

Homework

• Ex 3D, p.66--67, Wave Properties
• Ex 3E, p.69-70, Diffration
• Ex 3F, p.73-75 Superposition
• Ex 3G, p.76-78 Two Point Source Interference
• Ex 3H, p.81-83 Waves on a String
• Ex 3I, p.85-87 Wave Refraction on a String
• Ex 3B, p.47-52, Refraction
• Ex 3C, p.56-63, Lens
• Ex 3A, p.37-44 Curved Mirror

Lens

Simbucket Lens/Mirror Lab - App

GeoGebra Lens - App

GeoGebra Mirror App

Lens Concave & Convex