Question

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Answer 1

1) A simple pendulum consists of a small metal ball (called bob) suspended by a long thread from a rigid support, such that the bob is free to swing back and forth. The time period of a simple pendulum is the time taken by the pendulum bob to make one complete oscillation

2) Speedometer, instrument that indicates the speed of a vehicle, usually combined with a device known as an odometer that records the distance traveled