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PIRA Code(s)
3A10.20
Set up time
1 minute
Physics and Science Concepts
Oscillations
Operation
Move the weight along the hacksaw blade. Pull back on the blade and release. When the weight is at the top of the blade the frequency is smaller compared to when the weight is at the bottom.
Safety
Edge of blade may be sharp.

A weight is attached to a hacksaw blade so that it can move up and down the blade to change the frequency.