Experiment -3
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Using the same thickness of wire, try
lengths of 15 cm sticking out of the polystyrene block, but use
different sizes of plasticine balls. |
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Hint ! If you can't tell the difference, then make the largest ball a bit bigger and the smallest one smaller until you can. |
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Which ball of plasticine has the lowest natural frequency? (Answer) |
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Take the balls and wires out of the polystyrene block and pull the wires out of the balls. |
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