LIGHT AND SHADOWS

 

CAN YOU DESCRiBE HOW LIGHT TrAVELS AND USE THIS MODEL TO SHOW HOW A PINHOLE CAMERA WORKS?

MATERIALS (Details in teacher notes below)

Activity 1 – How Does Light Travel?

  1. Cardboard square with triangle hole cut in the center, small light source like an LED key chain light or  bare flashlight bulb

Activity 2 – Two Light Sources

  1. Same as Activity 1, but add a second bulb preferably of a different color.

Activity 3 – More Light Sources

  1. Replace the small point sources of light with a bulb with a long filament, like the kind used in fish tanks or  

  2. display cases.

Activity 4 – Make a Pinhole Viewer

  1. Empty carton, size not important but at least 25 cm on a side, transparency paper or waxed paper,

  2. aluminum foil, sharp pencil, tape (black electrical tape as needed).


OPTIONAL ACTIVITIES: Everyday Pinhole Images and Oatmeal Box Pinhole Camera. See teacher notes for details.


Rev 1/22/17

STUDENT INSTRUCTIONS AND TEACHER NOTES


Light_and_Shadows_Slides.pptx.zip  (PowerPoint slides with student instructions)


Luz y sombras.PPT.zip  (Presentaciones de PowerPoint con instruacciones para estudiantes)


Light_and_Shadow_Teacher_Notes.pdf


Light_and-Shadows_Observations.pdf (Observations and Data)


VIDEO: Optics Exploration Showing Pinhole Viewer


PHOTOS: Oatmeal Box Pinhole Photos