The document explains the behavior of light upon encountering an object, detailing three interactions: reflection, transmission, and absorption. It categorizes materials as transparent, translucent, or opaque, which determines how light interacts with them. Various examples of each category are provided to illustrate the concepts.

1. What will light do in the following 3
situations?
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2. Light travels in a straight line
 But when it hits an
object it can do 1 of
3 things….it can
 1) be reflected
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3. Light travels in a straight line
 But when it hits an
object it can
 2) be transmitted
 (pass through)
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4. Light travels in a straight line
 But when it hits an
object it can
 3) be absorbed
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5. Absorption
 Absorption is the disappearance of an
EM wave into the medium
 Absorption can cast shadows
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6. The 3 ways that light behaves
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7. Light waves interact with materials
Light can be reflected,
transmitted, or
absorbed…but why?

8. It depends on whether the object is
transparent, translucent or opaque
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9. Translucent
 Translucent materials
transmit some light but
cause it to spread in all
directions
 You can see light
through these materials
but not clearly
 Lampshades, frosted
glass, sheer fabrics,
notebook paper
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10. OPAQUE
 Opaque materials
do not allow any
light to pass through
them
 Construction paper,
Trees, Animals
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11. LET’S REVIEW
 TRANSPARENT
 TRANSLUCENT
 OPAQUE
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12. This flask is ….
 Transparent
 Translucent
 Opaque
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13. This lamp shade is…
 Transparent
 Translucent
 Opaque
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14. This vase is ….
 Transparent
 Translucent
 Opaque
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15. Aluminum Foil is…
 Transparent
 Translucent
 Opaque
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16. Saran Wrap is ….
 Transparent
 Translucent
 Opaque
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17. Wax paper is….
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18. These bulbs are ….
 Transparent
 Translucent
 Opaque
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19. This rock is….
 Transparent
 Translucent
 Opaque
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20. The water in the fish tank is …..
 Transparent
 Translucent
 Opaque
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21. Tissues are…
 Transparent
 Translucent
 Opaque
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22. Notebook Paper is…
 Transparent
 Translucent
 Opaque
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