012-06379B
Photogate Timer
25
®
Questions
c
Discuss your graphs of pendulum period versus mass and length. What relationship between mass and length
produces a straight line graph?
d
Did the period of your pendulum vary with the mass of the bob? Discuss why it did or did not.
e
Was mechanical energy conserved during a single swing of the pendulum?
f
No matter how high the initial height of the bob, the pendulum ultimately slows down and stops. Does this
slowing down defy the principle of the conservation of energy? Explain.
L
=
Table 10.2
θ
t
Δ
h
Δ
U
E
k
(deg)
(S)
(m)
(J)
(J)
Δ
d =
m
=
(m)
(Kg)
(m)