Activity: Operating the Equipment

￿Measuring Data

uPrepare the Optical Measurement Setup.

uTaking care not to allow the string to go slack, move the weight as shown in the illustration and then gently let it go.

uAfter the weight swings back and forward a few times, start the measurement operation on the EA-200.

1Weight Position of Equilibrium

2Hand

3Amplitude: 3cm

uMove the optical probe from position A to position B or C, and then repeat the measure- ment operation.

1Weight Position of Equilibrium

2Flashlight

3Weight Movement

4Optical Probe

5Distance Between A and B: 1cm

6Distance Between A and C: 3cm

uDetermine the period from the graph of measurement results, and compare this with the calculated value.

2-2-2

English

Measurementasurement

￿Calculator Operation

u Perform the following operation to prepare for light measurement using the optical probe.

Using E-CONm“E-CON”w1(SETUP)b(Wizard)w1(CASIO)d(Light) 0.01w255w1(YES)Using a Calculator Program

Find the applicable program in the Program Library (P.2-16-1), input it into your calculator, and then run it.)

uDetermine the period from graphs of the measurement results obtained at each measurement position.

L: Light Intensity

t(s) : Time

T(s) : Period

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uFind out how the period changes when you change the length of the pendulum.

uFind out how the period changes when you change the mass of the weight.

uFind out how the period changes when you change the size of the weight.

uFind out how the period changes when you change the amplitude.

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u Find out what happens when you use an iron or magnetic weight with a magnetic sheet under the weight.

uConsider why the period changes under the conditions described above.

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