A ticker-timer is a device used to measure the time taken for an object to travel a particular distance. It works by using a tape with evenly spaced dots as the object moves along a track. Each dot represents a specific interval of time.
To use a ticker-timer, you would attach the object you want to measure to a string or thread and connect it to the ticker-timer. As the object moves, it pulls the thread, causing the ticker-timer to mark dots on the tape at regular time intervals. By counting the number of dots marked on the tape, you can determine the time taken for the object to travel a specific distance.
The ticker-timer is often used in physics experiments to measure the velocity or acceleration of objects. It provides a way to accurately measure time intervals when objects are in motion.
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