It's Your Turn

Answer the questions below in your own words. Use specific examples and explain your reasoning.

Question 1: When a Lens Changed What You Saw

Think about a time you used or looked through a lens in real life.

This could be:

  • glasses
  • a magnifying glass
  • a phone camera
  • binoculars
  • a microscope
  • a projector

Describe what appeared different when looking through the lens.

Based on your observation, explain how the lens changed the path of light rays to form an image.

Question 2: Explaining Two Different Lenses

A younger cousin finds two lenses in science class and notices:

  • one makes objects appear larger
  • the other makes objects appear smaller

They ask:

“Why do these lenses change things differently?”

Without using equations, explain the conceptual difference between a converging lens and a diverging lens.

In your explanation, describe what happens to light rays as they pass through each lens.

Question 3: Predicting an Image with Rays

A candle is placed in front of a converging lens.

Without drawing the full diagram, explain how you would use the key rays to predict:

  • where the image forms
  • whether the image is upright or inverted
  • whether the image is real or virtual

Describe the role of at least two key rays in your explanation.

Question 4: Lens Calculation — Magnification

A converging lens forms an image that is 12 cm tall from an object that is 4 cm tall.

Calculate the magnification of the image.

Then explain:

  • whether the image is magnified or reduced
  • what the size of the magnification tells you about the image formed by the lens
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