Science Waves, Light & Sound Representational 12–13 yrs

Ray Diagrams & Images

光路图与成像

Description

Construct ray diagrams to show the formation of images by plane mirrors and converging lenses, identifying whether images are real or virtual, magnified or diminished, upright or inverted

Mastery Evidence

✓ Draws an accurate ray diagram for a plane mirror showing a virtual, upright, same-size image
✓ Draws a ray diagram for a converging lens to show image formation
✓ Uses a ray diagram to determine whether the image is real or virtual and which side of the lens it forms
✓ Applies ray diagram knowledge to explain how glasses, cameras, or projectors work

Assessment Prompt

If your child was asked to show on a diagram where their reflection appears to be when they look in a mirror, could they draw the correct ray paths and explain whether the image is real or virtual — and where it actually appears to be located?