Light waves interact with materials Light can be
Light waves interact with materials Light can be reflected, transmitted, or absorbed Created by KBuckner for Fried or Slide PBL 2010
TRANSMISSION l Transmission is the passage of an EM wave through a medium l If light reflected by objects did not pass through air, windows, or most of the eye, we would not be able to see objects Created by KBuckner for Fried or Slide PBL 2010
Absorption l Absorption is the disappearance of an EM wave into the medium l Absorption affects the way things look Created by KBuckner for Fried or Slide PBL 2010
Watch this clip to learn about transparent, translucent, and opaque objects. Created by KBuckner for Fried or Slide PBL 2010
How materials transmit light l Transparent materials allow most of the light that strikes them to pass through l It is possible to see objects through a transparent material l Air, water, clear glass Created by KBuckner for Fried or Slide PBL 2010
CAN YOU NAME SOME TRANSPARENT OBJECTS? Created by KBuckner for Fried or Slide PBL 2010
Translucent l Translucent materials transmit some light but cause it to spread in all directions l You can see light through these materials but no clearly l Lampshades, frosted glass, sheer fabrics, notebook paper Created by KBuckner for Fried or Slide PBL 2010
CAN YOU NAME SOME TRANSLUCENT OBJECTS? Created by KBuckner for Fried or Slide PBL 2010
OPAQUE l Opaque materials do not allow any light to pass through them l Heavy fabrics, construction paper, ceramic mugs Created by KBuckner for Fried or Slide PBL 2010
CAN YOU NAME SOME OPAQUE OBJECTS? Created by KBuckner for Fried or Slide PBL 2010
LET’S REVIEW l TRANSPARENT l TRANSLUCENT l OPAQUE Created by KBuckner for Fried or Slide PBL 2010
Let’s Play a Game!! Rules: If the ball is tossed to you, answer the question that appears on the slide. *If you get the question right, toss the ball to a friend. *If you get the question wrong, toss the ball to your teacher. GOOD LUCK! Created by KBuckner for Fried or Slide PBL 2010
This flask is …. l Transparent l Translucent l Opaque Created by KBuckner for Fried or Slide PBL 2010
This lamp shade is… l Transparent l Translucent l Opaque Created by KBuckner for Fried or Slide PBL 2010
This vase is …. l Transparent l Translucent l Opaque Created by KBuckner for Fried or Slide PBL 2010
Aluminum Foil is… l Transparent l Translucent l Opaque Created by KBuckner for Fried or Slide PBL 2010
This greenhouse is …. l Transparent l Translucent l Opaque Created by KBuckner for Fried or Slide PBL 2010
This wall is …. l Transparent l Translucent l Opaque Created by KBuckner for Fried or Slide PBL 2010
This rock is…. l Transparent l Translucent l Opaque Created by KBuckner for Fried or Slide PBL 2010
A magnifying glass is …. . l Transparent l Translucent l Opaque Created by KBuckner for Fried or Slide PBL 2010
Tissues are… l Transparent l Translucent l Opaque Created by KBuckner for Fried or Slide PBL 2010
Notebook Paper is… l Transparent l Translucent l Opaque Created by KBuckner for Fried or Slide PBL 2010
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