Thursday, 19 June 2014 10:19

## G3-03: SHIVE WAVE MACHINE - REFLECTION OF PULSES

• ID Code: G3-03
• Purpose: Demonstrate reflection of pulses from fixed ends and free ends.
• Description:
A pulse generated at the left end (photograph at left) reflects off the right end. The reflecting end can either be fixed (clamped, center photograph) or free (right photograph).
##### Engagement Suggestion
• Encourage students to make a prediction before each combination as to whether the wave will reflect, and whether that reflection will be upright or inverted. • This can be combined with demonstration G3-05, showing that fixed and free end reflections are the extreme cases of partial reflections due to a change in impedance.
##### Background
Like any wave in a transmission medium, when the medium ends the energy in the wave has to go somewhere. The wave is reflected back from the end. With a free end, the wave reflects identically; with the end clamped, it reflects inverted.
• Availability: Available
Read 1928 times Last modified on Wednesday, 10 February 2021 11:33
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