Physics – Physics Education
Scientific paper
2009-11-19
Physics
Physics Education
9 pages, 6 figures
Scientific paper
We explain simple laboratory experiments for making quantitative measurements of the Doppler effect from sources with acceleration. We analyze the spectra and clarify the conditions for the Doppler effect to be experimentally measurable, which turn out to be non-trivial when acceleration is involved. The experiments use sources with gravitational acceleration, in free fall and in motion as a pendulum, so that the results can be checked against fundamental physics principles. The experiments can be easily set up from ``off the shelf'' components only. The experiments are suitable for a wide range of students, including undergraduates not majoring in science or engineering.
Aoki Kenichiro
Mitsui Takahisa
Yamamoto Yuki
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