Meter Stick with hanging masses hung from hole near the end, fulcrum, .

Code Number: 1J10.25

Demo Title: Weight of a Meter Stick / Torque Method

Condition: Good

Principle: Center of Mass

Area of Study: Mechanics

Equipment:

Meter Stick with hole near the end, Fulcrum, Hanging Masses.

Procedure:

We have already determined that the mass of our meter stick is 160 g. Hang a 160 g mass on one end of the meter stick. Balancing this unit on the fulcrum should find an equilibrium point at 25 cm from the end that the mass is hanging on.

References:

Syed Ziauddin, "Determination of the Mass of a Ruler Without a Conventional Balance", TPT, Vol. 11, # 7, Oct. 1973, p. 427.

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Instructional Resources and Lecture Demonstrations

1J10.25 - Weight of a Meter Stick / Torque Method

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