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Topics/Subjects:
Physical sciences  
Instructional Strategies:
Guided inquiry  
Demonstrations  
Resource Type:
Instructor guide/manual  
Learning Time:
45 to 60 minutes  
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In this activity, a Whiffle® ball containing a battery-operated buzzer is twirled in a circle to demonstrate the Doppler effect.  The demonstration is an illustration of how stellar spectra can be used to measure a star's motion relative to Earth... (View More)

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