A RADAR gun is typically used by police to measure the speed of an auto. Using stop watches to measure the elapsed time over a known distance would also give the average speed. A dynamometer can also be used to measure tire rotation in a stationary situation and be converted to an equivalent speed.
The instrument used for measuring the speed of winds is called an anemometer. It typically consists of cups that rotate in the wind, and the speed of rotation is used to calculate the wind speed.
Force meter is the instrument used in measuring force.
An instrument commonly used to measure speed is a radar gun, which uses radio waves to calculate the speed of an object in motion. Radar guns are often used by law enforcement to monitor vehicle speed on roads.
There is no particular instrument used for measuring tornado intensity. Ratings are based primarily on damage assessment. Occasionally doppler radar has measure wind speeds inside a tornado, but such measurements are rare.
An instrument used for measuring a quantity of something is called a measuring device or a measuring instrument. Examples include a scale for measuring weight, a ruler for measuring length, or a thermometer for measuring temperature.
There are many tools used in recording and forecasting the weather. For example an anemometer Anemometer, an instrument for measuring wind speed. A hygrometer is used in determining the humidity of the atmosphere. The thermometer is for measuring temperature.
A clock
Photometer
micrometer
It is an instrument for measuring time
Weighing scales
A thermometer