50 Important General Science Question and Answers 02 | santhoshnair.net

50 Important General Science Question and Answers 02

50 Important General Science Question and Answers 02

1. Father of Nuclear Physics? - Ernest Rutherford
2. Father of Indian Nuclear Programme? - Homi.J. Bhabha
3. Two types of Units are? - Fundamental Units and Derived Units
4. Fundamental units can be expressed in 3 kinds of measuring systems such as? - CGS, MKS and FPS
5. The Units which are derived from fundamental units? - Derived Units
6. Modified form of MKS System? - SI (System International)
7. Globally approved form of unit system is? - SI system
8. Physical quantities are divided into? - Scalar quantity & Vector quantity
9. Physical quantity having only magnitude, but no direction? - Scalar quantity eg: Mass, Length, Time etc
10. Physical quantity having both magnitude and direction? - Vector quantity eg: Velocity, Momentum, Force etc
11. 99% of matter in the Universe is in? - Plasma form
12. Fifth state of matter? - Bose-Einstein condensate
13. Bose-Einstein condensate was first predicted by? - Satyendra Nath Bose and Albert Einstein
14. The pure Bose-Einstein was first created by? - Eric Cornell and Carl Wieman
15. The quark model of matter was discovered by? - Murray Gell Mann and George Sick
16. The particle made up of quarks and Gluons? - Hadrons
17. Most stable form of hadrons are? - Protons and Neutrons
18. The energy carriers in the matter? - Bosons$
19. Bosons which carry electromagnetic force are? - Photons
20. Bosons which carry weak nuclear force? - W & Z Bosons
21. Bosons which carry strong nuclear force are? - Gluons
22. Higgs Boson was discovered on? - 2012 July 4
23. Particle which is known as 'God particle'? - Higgs Boson
24. The particle which gives the property of mass to the matter? - Higgs Boson
25. The particle which is considered the building blocks of all life? - Higgs Boson
26. Higgs Boson was discovered at? - CERN (The European Organization for Nuclear Research)
27. The Indian scientist related to the term Boson? - Satyendra Nath Bose
28. Unit of work is?  - louie or Nm
29. In CGS System the unit of work is? - erg [1 joule = 10^7erg]
30. The rate of doing work is called? - Power [Power = Work/Time]
31. Unit of power is? - Watt or joule/sec
32. Power is a? - scalar quantity
33. Power is Measured in? - Horsepower [1 Horsepower =746 watt]
34. The capacity to do work is called? - Energy
35. Unit of energy is? - Joule
36. The energy developed on a body when work is done on that? - Mechanical energy
37. Two types of Mechanical energy are? - Kinetic energy and Potential energy
38. The energy possessed by a body due to its motion is called?  - Kinetic Energy
39. If the velocity is doubled, kinetic energy become? - Four times
40. If the mass of a moving body is doubled, its kinetic energy is? - Doubled
41. The energy possessed by a body, by virtue of its position is called? - Potential Energy [PE = mgh ] [m=mass, g = acceleration due to gravity, h = height]
42. Energy stored in a compressed string is? - Potential Energy
43. Energy stored in a water reservoir is? - Potential Energy
44. The potential energy of an object at a ground level is? - Zero
45. Potential energy increases as the height? - Increases
46. When a free falling object approaches the earth, its potential energy? - Decreases
47. Law of Conservation of Energy is put forward by? - Albert Einstein (E =mc2 (m = mass; C = Velocity of light)
48. Einstein proposed the Special Theory of Relativity in? - 1905
49. Einstein proposed the General Theory of Relativity in? - 1915
50. The change in position of an object over time is called? - Motion


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