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- 1. Multiple Choice
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.
- 2. Multiple Choice
What does reflection include(s)?
angle of incidence
angle of reflection
angle of bounce
angle of reflecting
- 3. Multiple Choice
Example(s) of Reflection
Echo
Echo location
rough surface
smooth surface
bouncing
- 4. Multiple Choice
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.
- 5. Multiple Choice
· Why does this happen?
Bouncing back of waves from a surface that it can’t pass through
The bending of waves as they enter a new medium
Waves travel at different speeds through different substances. As they enter a new substance, the wave bends as it changes speed in the new medium.
the smaller the opening the more diffraction, light waves are so small you will have little diffraction.
- 6. Multiple Choice
Rainbows are made by...
water
rain
Water droplets act as prisms to separate white light into the ROYGBIV spectrum
- 7. Multiple Choice
What is the definition of Diffraction?
The bending of waves as they enter a new medium
Bouncing back of waves from a surface that it can’t pass through
When two interfering waves have a displacement in the opposite direction, crest and trough overlap. Zero amplitude.
The bending of waves as they pass through openings or around corners
- 8. Multiple Choice
· Why can we hear around a corner but not see?
Increased amplitude of the light wave means brighter light
the smaller the opening the more diffraction, light waves are so small you will have little diffraction.
Decreased amplitude of the light wave means dimmer light
- 9. Multiple Choice
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)
- 10. Multiple Choice
What is the definition of Constructive Interference?
The bending of waves as they pass through openings or around corners
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.
- 11. Multiple Choice
[Constructive Interference] How does this affect a sound wave? A light wave?
Decreased amplitude of the light wave means dimmer light
Increased amplitude of the sound wave means louder sound
Increased amplitude of the light wave means brighter light
Decreased amplitude of the sound wave means softer sound
- 12. Multiple Choice
What is the definition of Destructive Interference?
When two interfering waves have a displacement in the opposite direction, crest and trough overlap. Zero amplitude.
The bending of waves as they enter a new medium
Bouncing back of waves from a surface that it can’t pass through
- 13. Multiple Choice
· [Destructive Interference] How does this affect a sound wave? A light wave?
Increased amplitude of the sound wave means louder sound
Increased amplitude of the light wave means brighter light
Decreased amplitude of the light wave means dimmer light
Decreased amplitude of the sound wave means softer sound
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