Friday, February 5, 2016

3rd Grade Uses Pendulums to Study Force and Motion


Students counted the number of swings in 1 minute... 

 Measuring time with an egg timer - for pendulums with four different lengths of string - 20cm, 30, cm, 50cm, and 60 cm.  They used this data to predict the number of swings that a 40 cm string would have.





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