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# ZingPath: Reflection and Refraction

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## Reflection and Refraction

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### Lesson Focus

#### Reflection of Water Waves from Different Obstacles

Physics

You will get to find out how waves can be reflected or refracted. Perform experiments on refraction in order to demonstrate Snell’s law.

### Now You Know

After completing this tutorial, you will be able to complete the following:

• Explain how water waves are reflected from plane surfaces.
• Explain how water waves are reflected from concave and convex surfaces.

### Everything You'll Have Covered

What factors determine the reflection shape of a wave that impinges onto a surface?

~ The reflection shape of a wave that impinges onto a surface is determined by the direction of the incoming wave and the shape of the obstacle onto which the wave impinges.

What happens when a wave impinges onto a linear object that is parallel to the wave itself?

~ When a wave impinges onto a parallel linear object, the wave is reflected back parallel to the object.

What happens to the reflection of a wave when it impinges onto a non-parallel object?

~ When a wave impinges onto a non-parallel object, it is reflected off the object at an angle that is equal to the angle at which the wave strikes the surface.

What happens when a wave impinges onto a curved surface?

~ When a wave impinges into a curved surface, it is reflected back in the shape of the surface.

### Tutorial Details

 Approximate Time 2 Minutes Pre-requisite Concepts Students should be able to define reflection, convex, and concave. Course Physics Type of Tutorial Animation Key Vocabulary reflection, convex, concave