convex and concave lenses solving the lens mystery 0 lynn garner & sharon holloway
TRANSCRIPT
Convex and Concave Lenses
Solving the Lens Mystery
0
Lynn Garner & Sharon Holloway
Lenses and Light
• Lenses are curved pieces of glass that can be convex or concave.
• Concave lenses cause light rays to spread out (diverge).
• Convex lenses cause light to come together (converge) to a focal point.
Refracted Light –Convex & Concave
Concave Mirrors
• Make-up mirrors are concave and magnify
• Concave mirrors are used in reflectors, spotlights, and headlights focus light into beams
Convex Mirrors
• Convex mirrors curve outwards and are wide angle mirrors.
• Convex mirrors are like rear view mirrors
• They provide drivers and clerks with a wide field of vision.
Review
• Excel Survey Graph – Far/Near Sighted
• Test Questions
• Overall Graph
Resources
• Kasparie, Diane & Mary Young. Practical Applications of Optical Lenses: Telescopes & Projectors. 2002.
• Discovery Education. Reflected Light and Mirrors.• Sharon Holloway – Fifth Grade Teacher• Lynn Garner - TST