Amplify Light Waves Assessment

Which statement best describes this image?

• Different types of waves have different wavelengths.

• Different types of waves have different amplitude.

• All waves have the same amplitude and wavelength.

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NGSS.HS-PS4-1

The same type of light can be brighter if it has a different ​ (a)   . If the ​ (b)   is different, it is a different type of light.

• amplitude

• wavelength

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NGSS.MS-PS4-1

Omar has a piece of rock called quartz. He wonders whether light can cause the quartz to become warm. The table shows what happens when different types of light hit the quartz. Based on this information, which type of light is more likely to cause the quartz to become warm?

• The visible light can cause the quartz to become warm because the visible light can pull energy out of the quartz when it passes through the quartz.

• The infrared light can cause the quartz to become warm because the infrared light bounces off the quartz, which means that it has more energy.

• There is no way to know because they are two different types of light, and different types of light can change a material in different ways.

• Neither type of light can cause the quartz to become warm because the quartz does not take in energy from either the infrared light or the visible light.

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NGSS.MS-PS1-4

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NGSS.MS-PS4-2

Based on this information, which type of light might cause the glass to melt?

• The infrared light can cause the glass to melt.

• The yellow light can cause the glass to melt.

• The X-ray light can cause the glass to melt.The X-ray light can cause the glass to melt.

• Any of these types of light can cause the glass to melt, because all light carries energy that can cause materials to change.

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NGSS.HS-PS4-1

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What is a type of wave that carries energy from one place to another?

• force

• motion

• light

• energy

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NGSS.HS-PS4-1

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The process of increasing the intensity of light waves is known as:

• Reflection

• Refraction

• Amplification

• Diffraction

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NGSS.MS-PS4-1

Which device is commonly used to amplify light waves in optical communication?

• Photodiode

• Laser

• Optical fiber

• Amplifier

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NGSS.HS-PS4-5

In a laser, light amplification occurs through the process of:

• Spontaneous emission

• Stimulated emission

• Absorption

• Reflection

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NGSS.HS-PS4-3

What is the primary purpose of an optical amplifier in a fiber optic network?

• To increase the bandwidth

• To reduce noise

• To amplify the light signal

• To change the light wavelength

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NGSS.HS-PS4-5

Which of the following is a common type of optical amplifier?

• Semiconductor optical amplifier

• Photovoltaic cell

• LED

• Phototransistor

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NGSS.HS-PS4-3