Light and Optics Unit Review

Tick for the properties of light

• Light travels in a straight line

• Light can be dispersed

• Light can be reflected

• Light can be scattered

• Light can be refracted

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A student placed a pencil in a cup of water.  The pencil appears broken because light-

• always travels in a straight line

• bends when it passes through water

• makes the water in the glass evaporate

• reflects the pencil on the water's surface

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Q1. What is the phenomenon of light bending when it passes through different mediums?

• A) Reflection

• B) Refraction

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Which figure represents the path light takes through a converging lens?

• 
• 
• 
• 

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Choose the word that completes the sentence:

As the light changes direction in the soapy layer, it (a)   ,splitting into multiple different wavelengths.

• Diffracts

• Refracts

• Disperses

• Reflects

• Interferes

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Light bending as it passes through a raindrop is an example of (a)  

• Reflection

• Refraction

• Absorption

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Which optical device bends light inward?

• convex lens

• concave lens

• plane mirror

• convex mirror

What type of lens creates the image seen in the eyeglasses?

• convex

• concave

• reflection

• plane

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A lens that is thicker in the middle than on the outside is called ___.

• diverging

• concave

• convex

• achromatic

Model used to explain the characteristics and behavior of light energy. it describes light as energy in the form of waves. the different colors of light have different wavelengths. waves with shorter wavelengths have higher energy than those with longer wavelengths

• Kepler's Model

• Einstein's Theory of Relativity

• Hawking's Wormhole Theory

• Wave Model of light

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