Question

19.(i) What is the use of a stopwatch?
(ii) How is it different from a wrist watch?​

Answer 1

Answer:

ans 1---A stopwatch is a handheld timepiece designed to measure the amount of time that elapses between its activation and deactivation. A large digital version of a stopwatch designed for viewing at a distance, as in a sports stadium, is called a stop clock.

Explanation:

ans 2--Stop watches in general, are MORE accurate than regular wrist watches, since they can measure down to 1/100th of a second and even up to milliseconds.

As well, many current wrist watches (mostly digital) include built-in functions that mimic stopwatch abilities.

Answer 2

Explanation:

Stopwatch is a special type of watch. it is used to calculate the time taken in a process or an activity. a stopwatch is different from other watches because in normal wristwatches, the time keeps moving whereas in stopwatches, the time starts from 00:00 and can be reset.