Transparent1233rstsyduddxki83838ubdw3dudu.ppt

physics

1. What will light do in the following 3
situations?
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Slide PBL 2010

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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Slide PBL 2010

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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Slide PBL 2010

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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Slide PBL 2010

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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Slide PBL 2010

22. Notebook Paper is…
Transparent
Translucent
Opaque
Created by KBuckner for Fried or
Slide PBL 2010