Properties of Light

According to Dutch scientist Christiaan Huygens, what was light made of?

• atoms

• particles

• waves

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Isaac Newton believed that light was made of

• waves

• particles

• dust

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Which example best illustrates that light behaves like particles?

• light bends as it strikes a window

• light bounces off a white cement sidewalk

• light travels in space at a speed of 3.0 x 10 8

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Which statement correctly compares the speed of light?

• The speed of light through space is much greater than 3 x 108 m/s.

• The speed of light in glass is much greater than 3 x 108 m/s.

• The speed of light in glass is slower than the speed of light through space.

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Sayid listed some characteristics of waves in a chart. Part of his chart is shown. Which of these would correct Sayid's error?

• Change “move only through matter” to “move through space and matter.”

• Change the heading of the chart to “Mechanical.”

• Replace “travel in straight lines” with “move in curved paths.”

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Zaccharias Janssen was a scientist who studied properties of light and invented one of the first compound microscopes in the late 1500s. Which property did Janssen most likely believe about light during the time of his invention?

• Light bends around objects

• light bounces off surfaces

• light travels in a curved path

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What happens when light from the Sun passes through any type of matter?

• The light slows down

• the light speeds up

• most of the light is abosrbed

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Lisa sees the image below as she researches the behavior of light. Which behavior is the spoon in the top image most likely being used to illustrate?

• refraction

• absorption

• reflection

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Which object is least likely to allow light to pass through it?

• a pair of eyeglasses

• a clear water bottle

• a tree trunk

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The diagram shows light interacting with an object.

Which object is the light most likely striking?

• a window

• a mirror

• a plaster wall

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