English National Curriculum - Science
Mission Objectives
Construct and interpret ray diagrams and state the law of reflection
Explain why some surfaces can form images from (or through) reflections, but others do not
Investigate the reflection of light by different types of surface
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Words and meanings to learn
virtual
image formed by diverging light rays that appear to come from a location behind the mirror or lens; it cannot be projected onto a screen
diffuse reflection
reflection from a rough or uneven surface, where light rays scatter in many directions, so no clear image is formed
specular reflection
reflection from a smooth surface (like a mirror), where light rays remain parallel and produce a clear image
lateral
when an image appears flipped left to right, such as in a mirror
normal
an imaginary line drawn at 90° (right angle) perpendicular to the surface at the point where the light ray meets it
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ray boxes and power supplies, Slit that fits the ray box to make a narrow ray, plain mirrors, loose paper, protractors, pencils, rulers, darkened room, handouts
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