PASCO ME-9215B Photogate Timer - Manual (Page 33)

012-06379B Photogate Timer
29 ®
Notes - on Procedure
c
Slide a horizontal plate against the ramp if needed to
ensure that the ball is rolling on a nearly continous sur-
face. This is critical for the success of the ensuing
experiments.
e
If the ramp tends to wobble upon ball release, stabilize
it by holding on to the upper end of the ramp using a
clamp.
Notes - on Analysis
Here are the results for the measurement of the fnal ve-
locities of the ball down the incline plane.
Notes - on Procedure
c ➤ ➤ ➤ ➤ ➤ IMPORTANT: Elevate the Air track setup if
neccessary to prevent the weight hanger from striking
the ground before the glider clears the final photogate.
➤ ➤ ➤ ➤ ➤ NOTE: The placement of the final photogate
can be easily obtained by allowing the glider to
slide forward until the weight hanger nearly
reaches the ground.
e
Mount the hook into the bottom hole of the glider. To
counterbalance its weight, add an accessory with simi-
lar weight to the opposite end of the glider as shown.
The tables below list the results from two experimental
conditions. The value of each parameter was the average
derived after five trials.
Δd (cm) = 1.60
Trial Time d
x
d
y
(s) (cm) (cm)
1 0.0161 40.7 73.3
2 0.0161 40.7 73.3
3 0.0161 40.7 73.3
4 0.0161 40.7 73.3
5 0.0161 40.7 73.3
Averages 0.0161 40.7 73.3
v
o
exp 0.99 m/s
v
o
theo 1.05 m/s
% of Error 5.56 %
Exp 3 - Speed of a Projectile
M Ma t
1
t
1
+t
2
t
2
t
3
v
1
v
2
a F
a
(g) (g) (s) (s) (s) (s) (m/s) (m/s) (m/s^2) (N)
260.5 10.3 0.31 0.48 0.17 1.19 0.41 0.76 0.30 0.10
240.48 30.32 0.20 0.30 0.10 0.68 0.65 1.22 0.84 0.30
220.47 50.33 0.14 0.21 0.07 0.54 0.93 1.70 1.45 0.49
200.47 70.33 0.11 0.18 0.06 0.44 1.10 1.99 2.02 0.69
Table 4.1 Constant System Mass
Exp 4 - Newton's Second Law
Table 3.1