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Understanding Opaque, Transparent, & Translucent Materials: Definitions, Examples, & Light, Study notes of Physics

Ohio Valley University (OVU)Physics

A science lesson on identifying and classifying materials as opaque, transparent, or translucent based on how they interact with light. Students are encouraged to go around the room and find examples, and create a fact sheet with key definitions, examples, and descriptions of what happens to light rays for each material.

What you will learn

  • What are the three main categories of materials based on their interaction with light?
  • What happens to light when it encounters a translucent material?
  • Can you give an example of a transparent material?

Typology: Study notes

2021/2022

Uploaded on 09/12/2022

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2 - Opaque, Transparent,
Translucent
•Level 4 - Identify Materials as translucent, transparent
or opaque
•Level 5 - State that objects that do not give out light
are seen when light reflects off them and enters the
eye;
•Level 5 - State that light may be absorbed, transmitted
or reflected when it hits an object.
•Level 6 - Relate the way substances affect light to how
they appear.
cwk Date
Qatar International School Science Department
source
Light travels in straight lines.
We represent this by always drawing light ray diagrams with a
ruler. The arrow on the ray shows the direction the light is
travelling.
Main
Opaque - An object or surface that does
not allow light through. Light is either
absorbed, reflected or scattered.
Main
Transparent - An object or surface that
does allow light through.
Main
Translucent - An object or surface that
does allow light through but scatters it on
the other side so you cannot see an
image..
Transparent
Translucent
Opaque
Go0around0the0room0and0classify0
any0materials0that0you0can0find.00
Are0there0any0more0that0you0can0
think0of?0At0least0100in0total.
pf2

Partial preview of the text

Download Understanding Opaque, Transparent, & Translucent Materials: Definitions, Examples, & Light and more Study notes Physics in PDF only on Docsity!

2 - Opaque, Transparent,

Translucent

  • (^) Level 4 - Identify Materials as translucent, transparent or opaque
  • (^) Level 5 - State that objects that do not give out light are seen when light reflects off them and enters the eye;
  • (^) Level 5 - State that light may be absorbed, transmitted or reflected when it hits an object.
  • Level 6 - Relate the way substances affect light to how they appear. cwk Date Qatar International School Science Department source

Light travels in straight lines.

We represent this by always drawing light ray diagrams with a ruler. The arrow on the ray shows the direction the light is travelling.

Main

Opaque - An object or surface that does

not allow light through. Light is either

absorbed, reflected or scattered.

Main

Transparent - An object or surface that

does allow light through.

Main

Translucent - An object or surface that

does allow light through but scatters it on

the other side so you cannot see an

image..

Transparent Translucent Opaque

Go around the room and classify

any materials that you can find.

Are there any more that you can

think of? At least 10 in total.

Task

Make a fact sheet describing what transparent,

translucent and opaque mean.

Make sure to include…

  • Key definitions.
  • Examples of each material.
  • What happens to the light rays for

each material.

Review

1. What are materials which allow no light through

called?

2. Give an example of a transparent material.

3. What happens to light when it meets a

translucent material?

Level 4 Level 5 Level 6 State what transparent, translucent and opaque mean. Give examples of transparent, translucent and opaque materials. Describe what happens to light rays as they come into transparent, translucent or opaque materials.

Extension Questions

Does all of the sound bend or does some of it bounce? What other differences are there between light and sound waves? What similarities?

2 - Opaque, Transparent,

Translucent

  • Level 4 - Identify Materials as translucent, transparent or opaque
  • Level 5 - State that objects that do not give out light are seen when light reflects off them and enters the eye;
  • Level 5 - State that light may be absorbed, transmitted or reflected when it hits an object.
  • Level 6 - Relate the way substances affect light to how they appear. cwk Date Qatar International School Science Department Which level do you think you achieved today?