Measuring Tools, Temperature, Velocity and Direction of Wind, Improvement of Hearing Power

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1. Pressure: Barometer

2. Voltage: Voltmeter

3. Purity of Milk: Lactometer

4. Temperature: Thermometer

5. Velocity of Wind: Anemometer

6. Earthquake: Richter scale

7. Degree of Humidity: Hygrometer

8. Blood Pressure: Sphygmomanometer

9. Radioactivity: Geiger counter

10. High Temperature: Pyrometer

11. Rainfall: Rain Guage

12. Earthquake Recording: Seismograph

13. Electric current: Ammeter

14. Altitude: Altimeter

15. Velocity and Direction of Wind: Anemometer

16. Sensitivity of Skin: Algeismeter

17. Atmospheric Pressure: Aneriodograph/Barometer

18. Improvement of Hearing Power: Audiometer

19. Quantity of Heat: Calorimeter

20. Intensities of Colours: Colorimeter

21. Longitude of Vessel Over Sea: Chronometer

22. Detection of Electric Charge: Electroscope

23. Voltage Difference: Electrometer

24. Depth of the Ocean: Fathometer

25. Small Electric Current: Galvanometer

26. Relative Density of Liquids: Hydrometer

27. Change in Atmospheric Humidity: Hygroscope

28. Detection and Measurement of Light: Photoelectric Cell

29. Salinity of Water: Salinometer

30. Spectrum Analysis: Spectroscope

31. Hearing of Heartbeat and Lung Sound: Stethoscope

32. Maintenance of a Constant Temperature: Thermostat

33. Amplification of Current: Transistor

34. Measurement OF Potential Difference between Two Points: Voltammeter

35. Flow of Air: Aerometer

36. Radiant Energy: Radiometer

37. Conversion of Rays into Mechanical energy: Radiograph

38. Measurement of Intensity of Light: Lucimeter

1. The energy of food is measured in Calories

2. The microscope is used to study Small and near objects

3. The S. I unit of temperature is Kelvin

4. The telescope is used for viewing Distant Objects

5. Decibel is a unit of Sound

6. The instrument used to measure Electric Current is Ammeter

7. The apparatus used in submarines to give a clear view of the object, on the surface of the ocean or ground is known as Periscope

8. Richter Scale is used for measuring Intensity of Earthquake

9. Fathometer is used to measure Ocean Depth

10. Hygrometer is used to measure Relative Humidity

11. Venturi Tube is used for Measuring Flow of a Fluid

12. Coronagraph is used for Observing and often photographing the sun՚s corona 13. Microphone is used to convert sound waves into electric energy

14. Velocity of wind is measured by Anemometer

15. Altimeter is used to measure the approximate height above the ground

16. Light year is related to Distance

17. Pressure of gases is measured by Barometer

18. Altitude of the Sun is measured by Sextant

19. There are 981 Dynes in one gram weight

20. When listening to heart beat with stethoscope, one hears closing of valves

21. The unit of Current is Ampere

22. The unit of energy in MKS system is Joule

23. The intensity of an earthquake is measured by Seismograph

24. Centigrade and Fahrenheit scales give the same reading at -40 Degree

25. The instrument, which is used to measure temperature by radiation, is called Pyrometer

26. Centrifuge is used to separate mixtures of chemicals

27. Radio Telescope is used to receive radio waves from objects in space 28. Audiometer is used to measure intensity of sound

29. A chronometer is used to measure time

30. Electroscope detects the presence of electric current

31. Stroboscope is used to view rapidly moving objects

32. Taceometer is used to measure distance, elevations and bearings during survey 33. Retinoscope is an instrument used to determine Refractive power of lens

34. The final image produced by a simple microscope is Virtual and Erect

35. Photodiode is used for the detection of Light 36. A Polaroid is a device used for analyzing polarized light

37. The spectrum of luminous bodies is studied by Spectrometer

38. Transformer is used for conversion of low voltage into high voltage and vice-versa

39. Ophthalmoscope is used to observe Retina

40. Sonar works on the principle of Absorption of sound

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