-, you know the period of a pendulum, what can you easily determine? a) The length of the string and the frequency of the pendulum b) The mass of the bob and the height from the bottom c) The angle of inclination 2) What happens if you decrease the length of the pendulum rod? a) You decrease the amplitude of the swing b) You increase the frequency or rate of the pendulum c) You decrease the weight of the bob 3) How does a pendulum on the Moon compare with one on Earth? a) It doesn't work, because there is no air on the Moon b) Its frequency would be slower because gravity (g) on the Moon is less than on Earth c) Its frequency would be faster because gravity (g) on the Moon is more than or Earth