1 Demo: Print: Supplies:. Warm-Up Exercise What is optics? Is it possible to emit light without heat? How many different types of light can you think.

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Presentation transcript:

1 Demo: Print: Supplies:

Warm-Up Exercise What is optics? Is it possible to emit light without heat? How many different types of light can you think of?

Agenda Final Clicker-Quiz Introduction to  Sound  EMR  Optics Classwork

What is optics? The Science that deals with the properties of both visible and invisible light and with vision. How many technologies can you think of that use radiation?

Uses for radiation Television Radiation therapy Microwave MRI X-rays Cell phones Tanning beds Fiber-optics Microscopes Lasers CD/DVD players/Blu-ray players Photon cannon Photo radar WIFI Radios Photocopier UV food treatment R I’s Mirror Blue-tooth Satellites/radar Nuclear Radiation NMR Camera/video Ovens Night vision

Light Transmittance Light is transmitted in the form of electromagnetic radiation. (EMR)

Now you see him Now you don’t Why?

An overview in lighting Light that is emitted from an object because it is hot Incandescence Fluorescence Phosphorescence Chemoluminescence Bioluminescence Luminescence (light without heat)

Light Interaction- Ray Matter of Light Transparent Translucent Opaque

Transparent Something that transmits light freely  Ex. Clear glass or plastic

Translucent Something that transmits some light but not enough to see through the material clearly  Ex. Frosted window pane

Opaque Something that absorbs and reflects light but doesn’t transmit it  Ex. Everything else!

Shadows Umbra blackest part of the shadow-all light is cut off Penumbra partial shadow around an umbra i.e: An eclipse

Light Reflection Regular Light rays hit a smooth surface and reflect parallel to each other Diffuse Light rays hit a rough surface and scatter in different directions  Create a reflection using light in the classroom…

Homework Pg. 409 # 1, 3, 5, 6, 9, 15