Which tool would be likely to provide the most accurate measurement of time in a laboratory experiment involving sprinting times of students?

a. a wall clock

b. a caliper

c. a stopwatch

d. a calendar

Correct answer choice is:

C. A stopwatch

Explanation:

The best a decent eye will do is fix a reading to one tenth of a second, that is so the design of the stopwatch. The digital stopwatch has 2 digits on the far side the seconds, thus it further separates the time in hundredths of a second. Since it's simple to scan to hundredth of a second, that's its design.

C. stopwatch

this is because calendar is for days and if you use a wall clock the time will not be so accurate and the caliper is used for measurement