Two pendulums have identical periods. One has a slightly larger amplitude than the other, but both swing through small angles compared to vertical. Which of the following must be true of the pendulum that has the larger amplitude?
Check all that apply.
a) It has more mass than the other one.
b) It is longer than the other one.
c) It moves faster at the lowest point in its swing than the other one.
d) It has slightly more energy than the other one.