Monday, January 9th Entry Task No entry task today. Find your seat. Clear off your desk except for last week’s entry task, EM Waves booklet, and ISN open to Venn diagram. Schedule: 17.3 The sun is the source of most visible light Objective: I will explain how visible light is produced. Homework: 17.3 RSG (ISN 122) Please have on desk: EM booklet to turn in

Visible Light Notes Sun (Natural Light) Uses Heat to create EM Energy INCANDESCENCE

Visible Light Notes Incandescent bulb Lamps; Overhead lights Uses electricity to create heat, which creates visible light Lamps; Overhead lights

Visible Light Notes Lamps; Fluorescent bulb Overhead lights Gas inside of bulb responds to electricity by creating U.V. Light; Special coating absorbs U.V. Light and give off visible light. More energy efficient than incandescent.

Visible Light Notes Overhead projectors; Car headlights; large spotlights Halogen Bulbs Uses electricity to create heat which produces visible light (A form of Incandescent light). More heat than incandescent bulb, but filament lasts longer.

Visible Light Notes Art; signs Neon Bulbs Gas inside of tube (like neon or argon) responds to electricity by creating visible light Type of gas determines color of light. Art; signs

Visible Light Notes LED Bulbs Christmas lights; Stop Lights Uses electricity to produces light (NO HEAT CREATED) Light is less intense than other forms, so multiple bulbs are often used. Christmas lights; Stop Lights

Luminescence

Visible Light Notes To see, mate or warn/hunt Bioluminescent Uses chemicals reactions inside animals to produce light To see, mate or warn/hunt

Tuesday, January 10th Entry Task What kind of EM waves are also called “heat rays”? Schedule: 17.4 Light Waves Interact with Materials Objective: I can describe how the wave behavior of light affects what we see. Homework Spectroscope activity if not finished in class. Please have on desk: Journal, pencil, textbook

Polarization

Visible Light behaviors Find and DESCRIBE (IYOW) the following terms (make sure to use LIGHT in each description) Absorption Transmission Reflection Give 2 examples of each of these behaviors using items in the classroom.

Possible Answer Absorption – Light hits material and disappears (changes into another form of energy): Desk, Book Cart, Chairs Transmission – Light hits material and goes through it: Windows, Plastic Bins, Soap Bottle, Air Reflection – Light hits material and bounces off: Book, White Paper, American Flag

Visible Light Behaviors Read page 574 and DESCRIBE (IYOW) the following and give examples from this room: Transparent Translucent Opaque

Possible Answer Transparent – all/most light passes (transmits) through them Translucent – some light passes through(transmits), some reflected or absorbed Opaque – all/most light is absorbed or reflected

Wednesday, January 11th Entry Task Schedule: What color would the apple seem to be if you shined a red light on it? What would have to happen for the apple to appear white? Schedule: 17.4 Light and Color, continued Objective: I will explain how the wave behavior of light affects what I see Homework Complete the activity handout if not finished in class. Please have on desk: Spectroscope activity, ISN open to 17.4 notes

Thursday, January 12th Entry Task Explain how mixing pigments is different from mixing light. Schedule: Chapter 17 Review Objective: I know and understand the concepts of Chapter 17, Electromagnetic Waves Homework Complete the review Study for tomorrow’s quiz Please have on desk: Computer activity, ISN, textbook

Friday, January 13th Entry Task Explain how electromagnetic waves are classified (grouped.) Schedule: Chapter 17 Quiz Objective: I will demonstrate my understanding of Chapter 17, Electromagnetic Waves Homework: No homework! Please have on desk: ISN and entry task