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Two Spring Online Activity

Go to Reflection of Waves from Boundaries.

Scroll down until you reach "from high speed to low speed".

Part A - High Speed to Low Speed

The first animation would be the same as waves from a slinky meeting a heavier thicker spring.

1. Does the pulse or wave continue into the heavier spring?
2. Does all of the pulse pass into the heavier spring?
3. On what side of the equilibrium does some of the reflected pulse return?
4. What happens to the speed of the reflected pulse?
5. What happens to the amplitude of the reflected pulse? Would you expect this to be the case?
6. What do you notice about the amplitude of the pulse in the heavier spring (transmitted pulse)?
7. What happens to the speed of the pulse in the heavier spring?
8. What do you notice about the width of the pulse in the heavier spring compared to the width of the original incident pulse in the light spring?

 

Part B - Low Speed to High Speed

1. Does the pulse or wave continue into the lighter spring?
2. Does all of the pulse pass into the lighter spring?
3. On what side of the equilibrium does some of the reflected pulse return?
4. What happens to the speed of the reflected pulse?
5. What happens to the amplitude of the reflected pulse? Would you expect this to be the case?
6. What do you notice about the amplitude of the pulse in the lighter spring (transmitted pulse)?
7. What happens to the speed of the pulse in the lighter spring?
8. What do you notice about the width of the pulse in the lighter spring compared to the width of the original incident pulse?

 

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