Refraction and Diffraction

A beam of light bends when it passes from air into water, and then bends even more when it passes from water into glass. What can you conclude from this fact?

• Air is denser than glass.

• Water is denser than glass.

• Glass is denser than water.

• Air is denser than water.

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NGSS.MS-PS4-2

Light refracts when:

• It changes speed

• It changes from a particle to a wave

• Its density changes

• It encounters a solid object

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NGSS.MS-PS4-2

Why does white light from the sun form a colorful rainbow when it passes through water droplets in the atmosphere?

• The droplets of water in the air have different densities

• Different-sized water droplets refract white light at different angles

• The colors that make up white light refract at different angles

• White light diffracts when it encounters water

Blue light bends more than red light when it passes through glass. Thus, blue light has a greater:

• Angle of refraction

• Interference pattern

• Index of diffraction

• Wavelength

Tags

NGSS.MS-PS4-2

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

• A) Reflection

• B) Refraction

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NGSS.MS-PS4-2

Which explains why the fork looks different under water?

• light can't pass through the glass

• the wavelength of light lengthens

• the amount of light increases when going through water

• light is refracted at an angle

Tags

NGSS.MS-PS4-2

A student noticed that fruit behind glasses of water looked distorted. Answer both parts of the question below by clicking on the correct answer for Part A and Part B.

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NGSS.MS-PS4-2

When sunlight passes through raindrops in the sky, we see (a)  

• light being reflected

• light being refracted

• light being absorbed

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NGSS.MS-PS4-2

What is the main difference between refraction and diffraction?

• Refraction is a phenomenon that affects light; diffraction is a phenomenon that affects sound.

• Refraction involves the bending of light; diffraction involves the bending and spreading of light, usually around an obstacle.

• Refraction usually happens in the atmosphere; diffraction usually happens closer to the earth's surface.

• Refraction involves changes to the density of light; diffraction involves changes to the speed of light.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What type of stuff can be refracted? Choose the best answer.

• Light

• Sound

• Heat

• Anything that travels in waves

Tags

NGSS.MS-PS4-2