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Chapter 15.2 Seeing an Image

Chapter 15.2 Seeing an Image. CPO Science Integrated Physics & Chemistry. Developing A Model. How does your eye work? Lenses How does light travel through a lens? Does light travel unaffected through glass?. How does a lens form an image?. How does a lens form an image?

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Chapter 15.2 Seeing an Image

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  1. Chapter 15.2Seeing an Image • CPO Science • Integrated Physics & Chemistry

  2. Developing A Model • How does your eye work? • Lenses • How does light travel through a lens? • Does light travel unaffected through glass? • How does a lens form an image?

  3. How does a lens form an image? What factors affect the image? Key Questions

  4. Developing An Experiment • This experiment requires you to trace the light ray from the laser • What material will we need? • Read the procedure in the Investigation Manual for part 1

  5. Run The Experiment • Tips • Make sure to aim the laser as shown in the manual. • Draw the ray from several angles. Make sure the ray exits the right hand side. • It may be easier to draw dashes first then connect them later using a straight edge.

  6. What did you learn? • What happened to the refracted ray as it exits the prism as you change the angle?

  7. Developing An Experiment • Will the light wave behave the same way in a lens as in the prism because they are both glass? • Will the shape of the lens affect the light?

  8. Run The Experiment • Tips: • Draw an axis for the lens • Move the lens straight down the paper keeping it parallel to the axis.

  9. What did you learn? • Can you label the key points?

  10. Developing An Experiment • How does the focal point & focal length have to do with the image the lens forms?

  11. Run The Experiment • Tips: • Draw an axis for the lens. • Draw 2 rays as if they came from the tip of the arrow. • Aim the laser parallel to the axis for the 1st ray and the 2nd ray through the center of the lens

  12. What did you learn? • Do the rays cross each other? • Can you describe this image? • Answer the questions in part 5 of the investigations?

  13. Summary • What causes light to bend in a lens? • What is the focal point & the focal length? • How is an image formed?

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