PASCO ME-8960 DEMONSTRATION GYROSCOPE - Manual (Page 14)

10
Demonstration Gyroscope 012-05327B
Part II: Measuring Quantities For the Theoretical Value
Setup
➀ Clamp the gyroscope shaft in the horizontal position. See Figure 1.3.
➁
Attach a Super Pulley with rod to the table using a table clamp.
➂
Wind a thread around the pulley on the center shaft and pass the thread over the Super
Pulley.
Procedure
Accounting For Friction
Because friction is not included in the theory, it will be compensated for in this experiment
by finding out how much mass over the pulley it takes to overcome kinetic friction. When
the mass drops at a constant speed, the weight of the mass is equal to the kinetic friction.
Then this “friction mass” will be subtracted from the mass used to accelerate the apparatus.
➀ To find the mass required to overcome kinetic friction, put just enough mass hanging over
the pulley so that the velocity is constant. Record this friction mass in Table 1.2.
Finding the Acceleration of the Disk
➀
To find the acceleration, put about 30 g (record the exact hanging mass in Table 1.2) over
the pulley. Wind the thread up and let the mass fall from the table to the floor, timing the
fall.
➁
Repeat this for a total of 5 times, always starting the hanging mass in the same position.
➂
Measure the height that the mass falls and record this height in Table 1.2.
support rod
rotating disk
right angle rod
clamp
90
100
110
120
130
140
80
70
60
50
40
30
ME-8960 DEMONSTRATION
GYROSCOPE
CAUTION
MAGNET
Figure 1.3: Experiment Setup