Exploring the Nature of Light Waves

How does the wavelength of light change when it moves from air into water?

• It increases.

• It decreases.

• It remains the same.

• It doubles.

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NGSS.HS-PS4-1

Explain how the speed of light changes when it travels from a vacuum into a glass medium. Use evidence to support your explanation.

• The speed of light increases because glass is denser than a vacuum.

• The speed of light decreases because glass is denser than a vacuum.

• The speed of light remains the same because the medium does not affect it.

• The speed of light doubles because glass amplifies it.

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NGSS.HS-PS4-1

Which of the following best describes the phenomenon of light wave interference?

• Light waves bend around obstacles.

• Light waves overlap and combine to form a new wave pattern.

• Light waves are absorbed by a medium.

• Light waves are scattered in different directions.

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NGSS.HS-PS4-5

Design an experiment to demonstrate the reflection and refraction of light using a glass prism. What observations would you expect to make?

• Light will pass straight through the prism without any change.

• Light will reflect off the surface of the prism without entering it.

• Light will bend at the surface of the prism and separate into different colors.

• Light will be absorbed by the prism and not emerge.

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NGSS.MS-PS4-2

Which part of the electromagnetic spectrum has the shortest wavelength?

• Radio waves

• Infrared waves

• Ultraviolet waves

• Gamma rays

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NGSS.HS-PS4-1

Analyze how the interference pattern changes when the wavelength of light is increased in a double-slit experiment.

• The interference fringes become closer together.

• The interference fringes become further apart.

• The interference pattern disappears.

• The interference pattern remains unchanged.

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NGSS.HS-PS4-1

What is the speed of light in a vacuum, and how does it compare to its speed in other mediums?

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NGSS.HS-PS4-1

Evaluate the impact of changing the angle of incidence on the angle of refraction when light passes from air into water. Provide reasoning for your evaluation.

• The angle of refraction increases as the angle of incidence increases, due to Snell's Law.

• The angle of refraction decreases as the angle of incidence increases, due to Snell's Law.

• The angle of refraction remains constant regardless of the angle of incidence.

• The angle of refraction is always greater than the angle of incidence.