Podcast
Questions and Answers
Which of the following is an example of a translucent object?
Which of the following is an example of a translucent object?
- A wooden door
- A frosted glass lampshade (correct)
- A sheet of aluminum foil
- A clear glass window
Which of the following is NOT a characteristic of opaque objects?
Which of the following is NOT a characteristic of opaque objects?
- They block all light from passing through
- They can be seen clearly (correct)
- They can be made from a variety of materials
- They reflect light from an external source
The moon is considered a non-luminous object because it:
The moon is considered a non-luminous object because it:
- Is too far away to be seen clearly
- Reflects light from the sun (correct)
- Is made of rock and dust
- Does not have its own internal light source
A fire is considered a luminous object because it:
A fire is considered a luminous object because it:
Which of the following is an example of a luminous object?
Which of the following is an example of a luminous object?
Flashcards
Luminous Objects
Luminous Objects
Objects that produce and emit their own light.
Non-Luminous Objects
Non-Luminous Objects
Objects that reflect light but do not emit their own.
Transparent Objects
Transparent Objects
Objects that allow full light passage, enabling clear visibility.
Translucent Objects
Translucent Objects
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Opaque Objects
Opaque Objects
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Study Notes
Luminous and Non-Luminous Objects
- Luminous objects emit their own light
- Examples include: stars, light bulbs, fire, lightning
- Non-luminous objects reflect light from an external source
- Examples include: Moon, planets, buildings, most objects around us
Transparent, Translucent, and Opaque Objects
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Transparent objects: Light passes completely through them, allowing objects on the other side to be clearly seen
-
Examples: clear glass, clean water, clean air
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Translucent objects: Light passes through them, but not completely, so objects on the other side are not clearly visible
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Examples: trace paper, frosted glass, muslin cloth
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Opaque objects: Light does not pass through them; they block the view of objects on the other side
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Examples: wood, metal, cardboard
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