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Science and Technology, Class 8
Real and Virtual Images
Images that settle on a screen · Images behind the mirror · A concave mirror ray diagram
🎯What We Will Be Able to Do
1
Define a real image and a virtual image
2
State four differences between the two
3
Say which mirror makes which kind of image
4
Draw a ray diagram for a concave mirror
Activity
Catching the Picture on Paper
TURN
Turn the concave mirror towards an open window.
HOLD
Hold thick white paper 20 cm to 30 cm in front of it.
SLIDE
Slide the paper or the mirror until the picture is sharp.
MEASURE
Measure the mirror to paper distance at that moment.
Presenter notes: Today we learn to tell two kinds of image apart and we draw a concave mirror ray diagram ourselves.