Wave Basics: Reflection and Refraction

____________________ occurs when a wave strikes an object and bounces off of it.

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NGSS.MS-PS4-2

The wave that strikes a mirror is called the ____________________ wave.

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NGSS.MS-PS4-2

The wave that bounces off the mirror is called the ____________________ wave.

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NGSS.MS-PS4-2

According to the Law of Reflection, if a wave strikes a barrier at a 45° angle, it will reflect off the barrier at __________.

• a 30° angle.

• a 45° angle.

• a 60° angle.

• There is no way to tell.

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NGSS.MS-PS4-2

What is refraction?

• the absorbing of a wave as it moves from one medium to another

• the bouncing of a wave as it moves from one medium to another

• the absorbing of a wave as it strikes a barrier

• the bending of a wave as it moves from one medium to another

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NGSS.MS-PS4-2

What causes refraction?

• The wave's amplitude changes.

• The wave's wavelength changes.

• The wave's frequency changes.

• The wave's speed changes.

Which statement describes what is happening to the light ray in the image?

• It is being refracted.

• It is being reflected.

• It is being absorbed.

• It is being transmitted.

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NGSS.MS-PS4-2

In this image, waves are moving through the box, but they are not refracting. If the waves are not refracting, what must be true about the material inside the box compared to the material outside of the box.

• The material inside the box is absorbing the wave.

• They have the same density.

• They have different densities.

• They are at different temperatures.

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NGSS.MS-PS4-2

What is reflection?

• the bouncing of a wave as it moves from one medium to another

• the bending of a wave as it strikes a surface

• the bending of a wave as it moves from one medium to another

• the bouncing of a wave as it strikes a surface

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NGSS.MS-PS4-2

What is happening to the waves in the image?

• They are being absorbed

• They are being reflected.

• They are being transmitted

• They are being refracted.

Tags

NGSS.MS-PS4-2