BellworkBellwork

What is light?What is light? It is range of EM radiation It is range of EM radiation

that can be detected by the that can be detected by the human eye.human eye.

Calendar Calendar

Today (4/30): Refraction notes Today (4/30): Refraction notes finish mirror maze assignmentfinish mirror maze assignment

Friday (5/2): Reflection PracticumFriday (5/2): Reflection Practicum Monday (5/5): Pre-Lab Monday (5/5): Pre-Lab

* Final Review Guide ** Final Review Guide * Tues. (5/6): LabTues. (5/6): Lab Sometime: Pop QuizSometime: Pop Quiz

New EquationsNew Equations

Period & FrequencyPeriod & Frequency Wave EquationWave Equation Sound IntensitySound Intensity

Introduction to Introduction to OpticsOptics

5/1/145/1/14

ImagesImages

Real ImageReal Image: An optical image : An optical image formed by converging light formed by converging light rays; rays; cancan be displayed on a be displayed on a screenscreen

Virtual ImageVirtual Image: An optical : An optical image that can be seen by an image that can be seen by an observer; observer; can notcan not be be displayed on a screendisplayed on a screen

Real Images ExamplesReal Images Examples

Smart BoardSmart Board Movie Movie

projectorsprojectors Overhead Overhead

projectorsprojectors CamerasCameras

Virtual Images Virtual Images ExamplesExamples

Virtual Images Virtual Images ExamplesExamples

Magnifying glassesMagnifying glasses Reflections in a Reflections in a

mirrormirror TelescopesTelescopes MicroscopesMicroscopes

Types of Mirror and Types of Mirror and LensesLenses

Mirrors:Mirrors:

Plane (flat)Plane (flat)

ConcaveConcave

ConvexConvex Lenses:Lenses:

ConvergingConverging

DivergingDiverging

Other Optics TermsOther Optics Terms

UprightUpright = Upside right = Upside right InvertedInverted = Upside down = Upside down ReducedReduced = Appears smaller = Appears smaller MagnifiedMagnified = Appears bigger = Appears bigger