Exploring Reflection and Refraction of Light

The video tutorial introduces the concept of refraction, contrasting it with reflection. It explains how light behaves when transitioning between different media, such as air, water, and glass, causing it to bend due to changes in speed. The tutorial provides examples, including a pencil in water, to illustrate how refraction creates virtual images. The video concludes with a call to action for viewers to take a quiz and engage further with the content.

What is the main topic of today's lesson?

• Refraction

• Reflection

• Diffraction

• Interference

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NGSS.MS-PS4-2

What happens to light when it is obstructed by an object in a single medium?

• It reflects

• It stops

• It bends

• It speeds up

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NGSS.MS-PS4-2

Which law does reflected light obey?

• Law of Incidence

• Law of Reflection

• Law of Refraction

• Law of Diffraction

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NGSS.MS-PS4-2

What is refraction?

• Bending of light when it moves from one medium to another

• Reflection of light in a single medium

• Absorption of light by an object

• Scattering of light in all directions

Tags

NGSS.MS-PS4-2

What happens to light when it enters a denser medium?

• It bends towards the normal

• It speeds up

• It bends away from the normal

• It travels in a straight line

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NGSS.MS-PS4-2

What is the effect on light when it moves from air to a rectangular prism?

• It reflects

• It stops

• It bends

• It speeds up

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NGSS.MS-PS4-2

Why does a pencil appear bent when placed in a glass of water?

• Because of diffraction

• Because of reflection

• Because of interference

• Because of refraction

What type of image do we see when a pencil is placed in water?

• Real image

• Inverted image

• Virtual image

• Magnified image

Tags

NGSS.MS-PS4-2

Why can't we see the actual image of the pencil in water?

• Because the light is scattered

• Because the light is bent

• Because the light is absorbed

• Because the light is reflected

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NGSS.MS-PS4-2

What happens to light when it moves from water to air?

• It stops

• It bends away from the normal

• It travels in a straight line

• It bends towards the normal

Tags

NGSS.MS-PS4-2