Law of ReflectionStates that theangle of incidence(direction in) isequal to the angleof reflection(direction out)
ReflectionThe bouncingback of a rayof light, soundor heat whenit hits asurface
Plane MirrorA mirror with a flat smoothsurface it reflects a ‘true’reversed image– Bathroom Mirror
Concave MirrorA mirror that is curvedinward. (Like a bowl) Itreflects an upright largerimage when inside thefocal point and an invertedsmaller image whenoutside the focal point– Compact or Make-up mirror
Convex MirrorA mirror that bends outward from thecenter. It reflects a distorted smallerimage but allows you to see aroundcorners.– Bus mirrors– Security mirrors
DiffractionThe change indirection of wavesas they bend arounda corner/edge oraround an obstacleor pass through anopening or slit.
RefractionThe bending of light as lightwaves pass through differentmediums
Concave LensA lens that bendsinward to center.The light waves moveoutward as they passthrough causing animage on the other sideto appear smaller.– Glasses
Convex LensA lens that bendsoutward from the center. As light passes through,it focuses the light into afine beam and the lightand images on the otherside appear larger– Magnifying glasses– Reading glasses
InterferenceThe combination of two or morewaves that results in a single wave.
Lab Time Carefully read andcomplete eachactivity from the labguide. You have 45minutes
Essential LearningsCarefully read andcopy each of thesedown after we discussthem!!!!!
Essential LearningsLight waves travel instraight lines until theystrike an object and thenthey are either reflected,absorbed or transmitted
Essential LearningsReflection is the “bouncingback” of light waves–There is a Law that governsreflection stating that theAngle of Incidence = Angleof Reflection
Essential LearningsRefraction is theslowing and bending oflight waves as lightpasses through amedium
Essential LearningsThere are three types ofmirrors that reflect light–Plane = Flat–Concave = ‘Hollow’–Convex = ‘Fat’