Light and Optics: Pinholes and Pinhole Viewers

If you’ve never played with pinholes, you’re in for a treat! They never cease to fascinate! Using a desk lamp with foil and a pin you can easily make an image of the bulb inside. Pinholes operate much like convex lenses and are a great precursor to studying optics. 

 

Questions Answered:

  • What happens when you put a pinhole in front of a bright scene? 
  • What will a pinhole show when placed in front of a screen? 
  • How can you set up a pinhole to show a scene?

 

Topics Addressed:

  • Light coming from objects can be projected onto a screen. 
  • A pinhole will cast an image of whatever is behind it. 
  • Lamps radiate or give off light.

 

Materials Needed

Desk lamp with metal shade, clear light bulbs, foil, cardboard screen, push pin­, craft punch/scissors

 

Preparation Time

Gather materials

 

NOTE: This activity is part of the Light, Optics, & Color Unit found here.

 

Light and Optics: Pinholes and Pinhole Viewers

$3.00Price

    Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

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