MCQOPTIONS
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| 1. |
A simple pendulum consists of a small metallic ball or a piece of stone suspended from a rigid stand by a thread. The metallic ball is called the ______ of the pendulum. |
| A. | Hinge |
| B. | Bob |
| C. | Doorknob |
| D. | Head |
| Answer» C. Doorknob | |