4 Wave Behaviors

A student placed a pencil in a cup of water. The pencil appears broken because light

• always travels in a straight line.

• bends when it passes through water.

• makes the water in the glass evaporate.

• reflects the pencil on the water's surface.

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What is the definition of Refraction?

• The bending of waves as they enter a new medium

• When two interfering waves have a displacement in the opposite direction, crest and trough overlap. Zero amplitude.

• When two interfering waves have a displacement in the same direction, two crests and two troughs overlap. Increased amplitude.

Which of the figures represents reflection?

• A
• B
• C
• D

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Refraction occurs when _____________

• the wave's speed changes by entering a new medium
• a wave bounces off of a boundary
• waves parts meet each other
• waves bend around a barrier

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What type of wave behavior is pictured above?

• Refraction
• Reflection
• Absorption
• Diffraction

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What type of wave behavior is pictured above?

• Refraction
• Reflection
• Absorption
• Diffraction

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When standing in the sun this behavior allows you to warm up as light and other waves hit your clothes. 

• Reflection
• Refraction
• Absorption
• Transmission

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What type of wave behavior is pictured above?

• Refraction
• Reflection
• Absorption
• Diffraction

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Give an example of Diffraction.

• Water droplets act as prisms to separate white light into the ROYGBIV spectrum

• Decreased amplitude of the sound wave means softer sound

• the smaller the opening the more diffraction, light waves are so small you will have little diffraction.

• hearing the bass of the music through the openings in a car (longer wavelengths)

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We can see objects because of_______

• reflection
• refraction
• transmission
• diffraction

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