A barometer measures air pressure; a hygrometermeasures humidity, or the moisture content of the air; and an air sampler (or high volume air sampler) is used to measure the purity or pollution level of the air.
measuring jug! kettle
a protractor
a protractor
There are many instruments for measuring speed but I am not aware of any for measuring velocity.
A thermometer
A measuring flask.
a instrument used for measuring blood pressure
Meter stick
A measuring cylinder
Zero error is necessary for measuring instruments for measuring accurate results because it helps to check that the instrument which we are using is whether correct or wrong
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.
To improve accuracy in a measuring instrument, you can calibrate it regularly using a known standard. Ensure the instrument is properly maintained and cleaned to prevent any errors. Use proper measurement techniques and follow manufacturer's guidelines for usage.