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How do use a stopwatch?
Start, Stop, Reset
What stopwatch used for?
to measure time
What is the metric unit for a stopwatch?
There are many things about a stopwatch that you can measure.You might want to know the mass, weight, diameter, thickness,temperature, conductivity, or cost of the stopwatch, and they allhave different units.Of course, the stopwatch itself measures time, and the unit of THATis the second, in both SI and US Customary units.
What are the steps to doing elapsed time?
Protocol-ARequires any common timekeeping device.Must run at the proper rate, but need not becalibrated or synchronized to anything.-- At the beginning of the run, note the time, and write it down.-- At the end of the run, note the time, and write it down.-- Take the data to a cool, dry, well-lighted, quiet place,whereit may be processed accurately, in peace, without distractions.-- Subtract the first-noted time from the last-noted time.The difference is the elapsed time during the run.===========================Protocol-B, if the required equipment is available.Requires a resettable stopwatch.-- Reset the stopwatch to zero.-- Just as the run begins, start the stopwatch.-- Just as the run ends, stop the stopwatch.-- Read the time elapsed during the run, directly from the stopwatch display.
What measures minutes and seconds?
clock, stopwatch, watch
