Start, Stop, Reset
Yes
Start, Stop, Reset
The primary use of a stopwatch is to time the duration of an event. Example: how many minutes/seconds does it take for a runner to race one mile -- "start" the stopwatch when the starting gun fires, then click "stop" as the runner crosses the finish line. You can try a stopwatch yourself on-line to get a sense of how it works and give you ideas of what you might be able to use it for. Just Google "on line stopwatch" you should get several options.
Use a stopwatch, when you have prepared everything, start the stopwatch and start your skill, when you have finished if it takes you a couple of seconds to stop the stopwatch deduct it from the time displayed on the screen.
used for something about time
no you use a stopwatch to measure elapsed time.
It depends on the stopwatch.
a ruler and a stopwatch
use the stopwatch to freeze them
You could use a stopwatch.
I'll need a stopwatch.
Seeing as you are looking at speed, you could use a stopwatch.