Observe how a solo trapeze act and a grandfather clock are both pendulums and recognize the period of a pendulum is affected by the length of the pendulum.
Observe how a solo trapeze act and a grandfather clock are both pendulums and recognize the period of a pendulum is affected by the length of the pendulum.
ELalka at 2:47 p.m., 04/19/11, said:
A fun way to learn about and teach physics!