How do the tension of the cord and the force of gravity affect a pendulum?
A. They are the competing forces that act on a pendulum as it swings.
B. They are the two factors that affect the period of a pendulum.
C. They determine what type of pendulum it will be. D. They have no effect on a pendulum.

Question

How do the tension of the cord and the force of gravity affect a pendulum?
A. They are the competing forces that act on a pendulum as it swings. 
B. They are the two factors that affect the period of a pendulum. 
C. They determine what type of pendulum it will be. D. They have no effect on a pendulum.

souvik · Answer

tension of the cord directed upward and gravity pulls the bob downward...They are the competing forces that act on a pendulum as it swings.