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General Scientific Facts Misc Competitive Exams

100 questions · General Science

  1. Question 1 of 100

    The World Wide Web was invented by:

  2. Question 2 of 100

    The computer, in its early mechanical conceptual form, is often associated with the pioneering work of:

  3. Question 3 of 100

    The first vaccine, for smallpox, is credited to the work of:

  4. Question 4 of 100

    Regular physical exercise is generally associated with benefits such as:

  5. Question 5 of 100

    The International System of Units (SI) is the standardized system used by scientists worldwide primarily to ensure:

  6. Question 6 of 100

    The SI unit of pressure is the:

  7. Question 7 of 100

    A microscope is primarily used to:

  8. Question 8 of 100

    The SI unit of energy is the:

  9. Question 9 of 100

    Louis Pasteur made significant contributions to science through his work on:

  10. Question 10 of 100

    Guglielmo Marconi is credited with significant contributions to the development of:

  11. Question 11 of 100

    The chemical symbol for sodium is:

  12. Question 12 of 100

    The SI unit of electric current is the:

  13. Question 13 of 100

    A hypothesis in science is best defined as:

  14. Question 14 of 100

    The scientific method is best described as:

  15. Question 15 of 100

    A scientific law differs from a theory mainly because a law:

  16. Question 16 of 100

    Alexander Fleming is credited with the discovery of:

  17. Question 17 of 100

    A stethoscope is a medical instrument primarily used to:

  18. Question 18 of 100

    A seismograph is used to measure and record:

  19. Question 19 of 100

    Transistor technology, which revolutionized electronics, was developed in the mid-20th century, enabling the later development of:

  20. Question 20 of 100

    The SI unit of length is the:

  21. Question 21 of 100

    Peer review in science refers to the process by which:

  22. Question 22 of 100

    The branch of science that studies matter, energy, and their interactions is called:

  23. Question 23 of 100

    Quantitative data in scientific observation refers to:

  24. Question 24 of 100

    Vaccination works by:

  25. Question 25 of 100

    Convert 2 kilometers to meters:

  26. Question 26 of 100

    The printing press, which revolutionized the spread of written information, was significantly advanced by:

  27. Question 27 of 100

    A spectrometer (or spectroscope) is used to:

  28. Question 28 of 100

    In an experiment, the variable that is measured or observed as a result of changes to the independent variable is called the:

  29. Question 29 of 100

    The SI unit of mass is the:

  30. Question 30 of 100

    A compound is best defined as:

  31. Question 31 of 100

    A scientific theory differs from a hypothesis mainly because a theory is:

  32. Question 32 of 100

    Marie Curie is renowned for her pioneering research on:

  33. Question 33 of 100

    A laboratory sample is diluted such that its original concentration of 100% is reduced to 25% of its original value. This represents a reduction of what percentage?

  34. Question 34 of 100

    The unit used to measure the loudness (intensity) of sound is the:

  35. Question 35 of 100

    The process by which plants lose water vapor through their leaves is called:

  36. Question 36 of 100

    Benjamin Franklin is known for his experiments and contributions to the understanding of:

  37. Question 37 of 100

    The SI unit of temperature is the:

  38. Question 38 of 100

    The human brain is primarily responsible for:

  39. Question 39 of 100

    The chemical symbol for gold is:

  40. Question 40 of 100

    White blood cells in the human body primarily function to:

  41. Question 41 of 100

    An ammeter is used to measure:

  42. Question 42 of 100

    The SI unit of force is the:

  43. Question 43 of 100

    If a scientist records a reaction's temperature as increasing from 20°C to 45°C, the temperature increase in degrees is:

  44. Question 44 of 100

    Reproducibility in scientific research refers to the ability of:

  45. Question 45 of 100

    A galvanometer is primarily used to detect and measure:

  46. Question 46 of 100

    The steam engine, significantly improved for widespread industrial use, is closely associated with:

  47. Question 47 of 100

    A barometer is used to measure:

  48. Question 48 of 100

    Charles Darwin is best known for proposing the theory of:

  49. Question 49 of 100

    The largest organ of the human body is the:

  50. Question 50 of 100

    A telescope is primarily used to:

  51. Question 51 of 100

    Qualitative data in scientific observation refers to:

  52. Question 52 of 100

    The Wright Brothers (Orville and Wilbur Wright) are credited with achieving the first powered, controlled flight of a heavier-than-air aircraft in:

  53. Question 53 of 100

    If the human body is approximately 60% water by mass, a person weighing 70 kg would have approximately how many kilograms of water in their body?

  54. Question 54 of 100

    The telephone is widely credited to have been invented by:

  55. Question 55 of 100

    A pH meter is used to measure:

  56. Question 56 of 100

    Thomas Edison is widely credited with significant contributions to the development of the:

  57. Question 57 of 100

    The human digestive system's primary function is to:

  58. Question 58 of 100

    The X-ray was discovered by:

  59. Question 59 of 100

    A balanced diet for humans generally includes an appropriate combination of:

  60. Question 60 of 100

    The most abundant gas in the Earth's atmosphere is:

  61. Question 61 of 100

    An element is best defined as:

  62. Question 62 of 100

    A control group in an experiment is used to:

  63. Question 63 of 100

    A centrifuge is a laboratory instrument used to:

  64. Question 64 of 100

    Photosynthesis in plants primarily produces:

  65. Question 65 of 100

    Stephen Hawking made significant contributions to theoretical physics, particularly in the study of:

  66. Question 66 of 100

    Vitamin D is primarily synthesized in the human body through exposure to:

  67. Question 67 of 100

    Galileo Galilei made significant contributions to astronomy through his use of the:

  68. Question 68 of 100

    The human body typically has how many chromosomes in most cells?

  69. Question 69 of 100

    Nikola Tesla is best known for his contributions to the development of:

  70. Question 70 of 100

    Avogadro's number, used in chemistry, is approximately:

  71. Question 71 of 100

    The modern safety pin, sewing machine improvements, and numerous other inventions of the 19th century reflect a period often called the:

  72. Question 72 of 100

    Dmitri Mendeleev is best known for creating an early version of the:

  73. Question 73 of 100

    If a human adult has an average resting heart rate of approximately 70 beats per minute, approximately how many times does the heart beat in one hour?

  74. Question 74 of 100

    The human respiratory system's primary function is to:

  75. Question 75 of 100

    The process by which a solid changes directly into a gas, without passing through a liquid state, is called:

  76. Question 76 of 100

    The light bulb, in its practical commercially viable form, is commonly credited to:

  77. Question 77 of 100

    The branch of science that studies living organisms is called:

  78. Question 78 of 100

    The SI unit of time is the:

  79. Question 79 of 100

    Gregor Mendel is often referred to as the 'father of modern genetics' due to his experiments on:

  80. Question 80 of 100

    The human heart primarily functions to:

  81. Question 81 of 100

    The Nobel Prize in science is awarded annually in which of the following categories?

  82. Question 82 of 100

    If a substance has a pH of 3, it is considered to be:

  83. Question 83 of 100

    A voltmeter is used to measure:

  84. Question 84 of 100

    Sir Isaac Newton is best known for formulating the laws of motion and the law of:

  85. Question 85 of 100

    The primary function of red blood cells in the human body is to:

  86. Question 86 of 100

    The SI unit of electrical resistance is the:

  87. Question 87 of 100

    Michael Faraday made significant contributions to the understanding of:

  88. Question 88 of 100

    Isotopes of an element have the same number of protons but a different number of:

  89. Question 89 of 100

    An experiment's validity refers to:

  90. Question 90 of 100

    Convert 500 grams to kilograms:

  91. Question 91 of 100

    A thermometer is used to measure:

  92. Question 92 of 100

    A compass is primarily used for:

  93. Question 93 of 100

    DNA (deoxyribonucleic acid) is best described as:

  94. Question 94 of 100

    The electric battery (an early form) was invented by:

  95. Question 95 of 100

    The branch of science that studies the composition, properties, and reactions of substances is called:

  96. Question 96 of 100

    James Watson and Francis Crick, along with contributions from Rosalind Franklin's research, are credited with discovering the structure of:

  97. Question 97 of 100

    If a scientific experiment is repeated 3 times with results of 10, 12, and 11 (in the same units), the average (mean) of these results is approximately:

  98. Question 98 of 100

    Albert Einstein is best known for developing the theory of:

  99. Question 99 of 100

    In an experiment, the variable that is deliberately changed by the researcher is called the:

  100. Question 100 of 100

    The unit used to measure the frequency of a sound wave is the:

Question 1 / 100

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