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Casio EA-200 User Manual

Page 17

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20020601

English

í Calculator Operation

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

Using E-CON

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.)

u Determine the period from graphs of the measurement results obtained at each

measurement position.

L

:

Light Intensity

t

(s)

:

Time

T

(s)

:

Period

2-2-2

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Other Things To Do

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u Find out how the period changes when you change the length of the pendulum.
u Find out how the period changes when you change the mass of the weight.
u Find out how the period changes when you change the size of the weight.
u Find out how the period changes when you change the amplitude.
u Find out what happens when you use an iron or magnetic weight with a magnetic

sheet under the weight.

u Consider why the period changes under the conditions described above.

Activity: Operating the Equipment

Activity: Operating the Equipment

Measurement

Measurement

í Measuring Data

u Prepare the Optical Measurement Setup.
u Taking care not to allow the string to go slack, move the weight as shown in the illustration

and then gently let it go.

u After the weight swings back and forward a few times, start the measurement operation

on the EA-200.

u Move the optical probe from position A to position B or C, and then repeat the measure-

ment operation.

u Determine the period from the graph of measurement results, and compare this with the

calculated value.

1

Weight Position of Equilibrium

2

Hand

3

Amplitude: 3cm

1

Weight Position of Equilibrium

2

Flashlight

3

Weight Movement

4

Optical Probe

5

Distance Between A and B: 1cm

6

Distance Between A and C: 3cm

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