Wave behavior

What is the definition reflection?

• The bending of waves as they enter a new medium

• Bouncing back of waves from a surface that it can’t pass through

• The bending of waves as they pass through openings or around corners

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

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NGSS.MS-PS4-2

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.

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NGSS.MS-PS4-2

Which of the figures represents reflection?

• A
• B
• C
• D

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NGSS.MS-PS4-2

Which of the following represents refraction?

• A
• B
• C
• D

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NGSS.MS-PS4-2

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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NGSS.MS-PS4-2

When a sound wave experiences reflection, we hear

• a louder sound
• an echo
• a quieter sound
• nothing

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NGSS.MS-PS4-2

What type of wave behavior is pictured above?

• Refraction
• Reflection
• Absorption
• Diffraction

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NGSS.MS-PS4-2

Light waves and sound waves are similar in that...

• They are both longitudinal waves

• They are both transverse waves

• They both transmit energy

• They both can travel through space.

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NGSS.MS-PS4-2

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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NGSS.MS-PS4-2

• Constructive Interference
• Destructive Interference
• Refraction
• Diffraction

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NGSS.MS-PS4-1