Stopwatch.
A clock or stop watch
This depends on what you are measuring. A tool that can be used is a tape measure.
A protractor is the common tool used in mathematics for measuring and drawing angles.
That tool is called a protractor.
In the past, a common time measuring instrument was the sundial. Today, the usual measuring instruments for time are clocks and watches. For highly accurate measurement of time an atomic clock is used. Stop watches are also used to measure time in some sports.
A balance is the best tool for measuring mass.
a syring is the tool for mesuring mass.
There are many instruments (tools) used for measuring. It depends on what you're measuring. A ruler can be used to measure length, a watch to measure time and an anemometer for measuring wind speed.
There are many instruments (tools) used for measuring. It depends on what you're measuring. A ruler can be used to measure length, a watch to measure time and an anemometer for measuring wind speed.
Time-Domain Reflectometer (TDR)
No, it is a tool.
Thermometer