Thread: Everyday Science (My Notes)
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Old Saturday, October 08, 2011
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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 analysing 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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