General Knowledge Questions of Science with Answers
Do you consider yourself a science buff? Or perhaps you just desire to expand your knowledge of the world a circular us? Our collection of General Knowledge Questions of Science with Answers is the perfect place to commence. From physics to chemisendeavour to biology, our science questions will challenge and enlighten you.
Here are some key features of our science quiz questions:
- Suitable for learners of all ages and levels of scientific knowledge.
- Cat an terminate a broad range of scientific topics, including astronomy, earth science, and more.
- Designed to be both informative and entertaining, with a human touch that makes learning fun.
- Offer detailed explanations and answers to assist you understand the concepts behind each question.
Whether you're studying for a science exam or just desire to impress your friends with your knowledge, our General Knowledge Questions of Science with Answers are a grconsume way to experiment your understanding of the world a circular us. So why not donate them a endeavor today? You might just learn something new and interesting!
General Science
Q1. What is Science?
Ans. Science is the study of nature and behaviour of natural things.
Q2. Who is the father of modern science?
Ans. "Galileo Galilei" is the father of modern science.
Q3. What are the 10 main branches of science?
Ans. Physics, Biology, Chemistry, Zoology, Astronomy, Medicine, Astrophysics, Earth Sciences, Environmental Science, Biomedicine..
Q4. Which branch of science is the king of science?
Ans. Physics is the king of all sciences as it helps us understand the way nature works.
Q5. Who invented Typewriter?
Ans. Christopher Latham Sholes invented Typewriter in 1878.
Q6. Who discovered Blood Group?
Ans. Karl Landsteiner discovered Blood Group in 1900.
Q7. How many planets are there in the Solar System?
Ans. There are 8 planets and 5 dwarf planets in the solar system.
Q8. What is Physics in simple words?
Ans. A science that deals with matter and energy and their interactions
Q9. What are included in gastric juice?
Ans. Enzymes and other chemicals are included in gastric juice.
Q10. Who wrote the first book of Physics?
Ans. Aristotle.
Q11. What are the names of the eight Planets of the solar system?
Ans. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
Q12. What is Chemistry in simple words?
Ans. Chemistry is the branch of science which deals with the properties, composition, and structure of elements and compounds.
Q13. What are the 5 types of Chemistry?
Ans. Organic Chemistry, Analytical Chemistry, Physical Chemistry, Inorganic Chemistry and Biochemistry.
Q14. What is the function of gastric juice?
Ans. Gastric juice break down the proteins present in food chemically.
Q15. Is weight a force?
Ans. Weight is a force acting on that matter.
Q16. What is weight in physics?
Ans. The weight of a body is the force with which it is attracted towards the centre of the earth.
Q17. What is meant by energy?
Ans. Energy means power to work.
Q18. What are different forms of energy?
Ans. Light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy and so on.
Q19. What are called finger like projections in small intestine?
Ans. The finger like projections in small intestine are called Villi.
Q20. What is the SI unit of Heat?
Ans. Joule.
Q21. What is ultra sound used for?
Ans. Ultra sound is used to examine the patient internally.
Q22. What are the names of 5 dwarf planets of the solar system?
Ans. Pluto, Ceres, Makemake, Haumea and Eris.
Q23. The branch of science which deals with the properties of matter and energy
Ans. Physics.
Q24. Who discovered Electrons?
Ans. JJ Thompson discovered Electrons in 1897.
Q25. Who discovered Protons?
Ans. Ernest Rutherford discovered Protons in 1911.
Q26. Which branch of science plays an important role in engineering?
Ans. Physics.
Q27. The Branch of Physics deals with highly energetic ions
Ans. Plasma physics.
Q28. The branch of Physics which deals with properties of gravitational force?
Ans. Field theory.
Q29. The branch of physics which deals with the living things.
Ans. biological sciences.
Q30. The physics of moving charge particles is known as.
Ans. Electro-dynamics.
Q31. Where are the villi present in the small intestine?
Ans. The villi are present on the walls of the last part of small intestine.
Q32. What is the largest planet in the solar system?
Ans. "Jupiter" is the largest planet is the solar system.
Q33. Taking off rocket can be explained by.
Ans. Law of conservation of momentum.
Q34. Flight of a rocket in the space is an example of.
Ans. Third law of motion.
Q35. Time rate of change of momentum is equal to.
Ans. Force.
Q36. Why Ballistic missile fails in some circumstances of precision?
Ans. Due to air resistance.
Q37. Which law of motion is also called law of inertia?
Ans. 1st law of motion.
Q38. 2nd law of motion gives the definition of.
Ans. Acceleration.
Q39. Momentum depends upon.
Ans. Both mass and velocity of the body.
Q40. How many millimeters are there in 1cm?
Ans. There are 10 millimeters in 1cm.
Q41. Why it is difficult to move heavy objects on a rough surface?
Ans. Because of a contact force acting on the object, which creates resistance in motion. This force is called Fraction.
Q42. Why fraction stops a moving object?
Ans. Fraction stops a moving object because it opposes motion of one object over another object.
Q43. Fractional forces are large or small on rough surfaces?
Ans. Fractional forces are large on rough surfaces.
Q44. What is the hottest planet in the solar system?
Ans. "Venus" is the hottest planet in the solar system.
Q45. Fractional forces are large or small on smooth surfaces?
Ans. Fractional forces are small on smooth surfaces.
Q46. While playing Caroom Board, players sprinkle boric powder on the board, why?
Ans. To reduce the fractional force between coin and the board surface.
Q47. What is Disorders of digestive system?
Ans. Food is not some time digested properly which called disorder of digestive system.
Q48. When two surfaces slide on each other, heat is produced, why?
Ans. This is because of fraction.
49. What is the smallest planet in the solar system?
Ans. "Mercury" is the smallest planet in the solar system.
Q50. What is gravity or gravitational force?
Ans. Gravity or Gravitational force is the force with which earth attracts all objects towards its centre.
Q51. What is mass?
Ans. Mass is the quantity of matter in an object.
Q52. Is mass of an object remains the same everywhere?
Ans. Yes, mass of an object remains the same everywhere.
Q53. What is weight?
Ans. Weight is the amount of gravitational force acting on an object.
Q54. Which is the coldest planet in the solar system?
Ans. "Neptune" is the coldest planet in the solar system.
Q55. Does weight of an object remain the same everywhere?
Ans. No, weight of an object does not remain the same everywhere.
Q56. What are machines?
Ans. Machines are the devices which make out work easier.
Q57. What are the causes of disorders of the digestive system?
Ans. Infected food, not washing hands before meals, eating in unclean utensils etc. Any of the factors may lead to food poisoning, diarrhoea and constipation.
Q58. Is wood cutter a machine?
Ans. Yes wood cutter is a simple machine. It is used to break the wood into two pieces.
Q59. What is wedges?
Ans. Wedges are simple machines, they are triangular in shapes and thin on one sides and thick on other sides. They are used to separate two objects. Wood cutter is the best example of wedges.
Q60. What is inclined plane?
Ans. Inclined plane is a simple machine, used for lifting objects to a height.
Q61. Why the ball bearings reduce friction?
Ans. Because balls of ball bearings roll on surface to reduce friction.
Q62. What is Inertia?
Ans. The tendency of all objects and matter in the universe to resist any change in its state of rest or of uniform motion is called inertia.
Q63. Which force is responsible for falling objects on the earth?
Ans. Gravitational force.
Q64. What is thermal energy?
Ans. Thermal energy is the energy that comes from heat.
Q65. By which process the heat flows in a metal rod?
Ans. The heat flows in a metal rod by the process of conduction.
Q66. By which process the coastal breeze is produced?
Ans. The coastal breeze is produced by Convection.
Q67. What is Diarrhoea?
Ans. Diarrhoea is the frequent discharge of loose, watery fluid from the body.
Q68. Why the heat transfers from hot objects to cold objects?
Ans. The heat transfers from hot objects to cold objects because of temperature difference.
Q69. What are the three different modes of heat transfer?
Ans. Conduction, convection and radiation.
Q70. How the molecules vibrate in conduction?
Ans. In conduction the molecules vibrate about their central points.
Q71. What is vacuum flask?
Ans. Vacuum flask is a type of flask that aims to atop all three forms of heat transfer.
Q72. What is the purpose of hair in the nostrils?
Ans. The hair in the nostrils capture dust particles from the air inhaled and clean it.
Q73. Who invented Atomic bomb?
Ans. Robert Oppenheimer, Edward Teller et al invented Atomic bomb in 1945.
Q74. Who invented Refrigerator
Ans. William Cullen invented Refrigerator in 1927.
Q75. Black coloured clothes are warm in cold climates because:
Ans. Of poor reflector and good absorber.
Q76. How many Moons are there in the solar system?
Ans. There are more than 200 moons in the solar system.
Q77. Does light travel in the same speed in different transparent media?
Ans. No, the light travels in different speeds in different transparent media.
Q78. What is rare medium
Ans. The medium in which the light travel fast is called Rare Medium.
Q79. What is the alternate name of Trachea?
Ans. Trachea is also called the Wind Pipe.
Q80. What is denser medium.
Ans. The medium in which the light travel slow is called Denser Medium.
Q81. Which of the following is rare medium? water, Air, Glass and Vacuum.
Ans. Vacuum is a rare medium because the light travels fastest in vacuum.
Q82. Which of the following is denser medium? water, Air, Glass and Vacuum.
Ans. Glass is denser medium because the light travels slowest in glass.
Q83. What is incident ray of light?
Ans. The light ray that strikes a surface is called incident ray of light.
Q84. What is reflected ray of light?
Ans. The light ray that bends in the second medium is call reflected ray of light.
Q85. What are Luminous objects?
Ans. The objects which produce light are called Luminous objects.
Q86. What is the function of blood circulation system?
Ans. Blood circulation system carry useful materials to where they are needed and remove waste materials from where they are produced.
Q87. What are Non-Luminous objects?
Ans. The objects which do not produce light are called Non-Luminous objects.
Q88. What is Regular Reflection?
Ans. When parallel rays of light strike a smooth surface, most of the rays are reflected as parallel rays and the angle of incidence is equal to the angle of reflection. This type of reflection is called Regular Reflection.
Q89. What is Diffused or Irregular Reflection?
Ans. When parallel rays of light strike a rough surface, then the reflected rays are scattered in different directions. This type of reflection is called Diffused Reflection or Irregular Reflection.
Q90. What are the examples of Luminous Objects?
Ans. Sun, Stars and Light Bulb.
Q91. What are the examples of Non-Luminous Objects?
Ans. Moon and Planets.
Q92. What are blood vessels?
Ans. Blood vessels are the tube in which blood circulation occurs.
Q93. How Moon can be seen, as it does not produce light?
Ans. Moon can be seen due to irregular reflection of sun light.
Q94. How we receive light after sunset and before sunrise?
Ans. We receive light after sunset and before sunrise due to irregular reflection of sunlight from dust particles in the air.
Q95. What are light rays?
Ans. Light travels along path, which are called Rays.
Q96. What is the speed of light?
Ans. Light travels at a speed of 3x108m/s.
Q97. Which planet has the most moons?
Ans. "Saturn".
Q98. What is plane mirror?
Ans. A mirror which has smooth, polished and regular surface is called Plane Mirror.
Q99. What is Concave Mirror?
Ans. Concave Mirror is a mirror whose inner surface is shining.
Q100. What is Convex Mirror?
Ans. Convex Mirror is a mirror whose outer surface is shining.
Q101. What is Computer Hardware?
Ans. Computer Hardware is the physical components of the computer. For example Hard Drive and Processor.
Q102. Who invented Radar?
Ans. Sir Robert Alexander Watson-Watt invented Radar in 1939.
Q103. Who invented Air conditioner?
Ans. Willis Carrier invented Air conditioner in 1902.
Q104. What are the five types of computer hardware?
Ans. The five types of Computer Hardware are: Input, Processing, Storage, Output and Communication Devices.
Q105. What kind of mirror the front of the spoon is?
Ans. Concave Mirror.
Q106. What kind of mirror does the back of the spoon represent?
Ans. Convex Mirror.
Q107. What is WBC stand for?
Ans. WBC stand for "White Blood Cells".
Q108. What is RBC stand for?
Ans. RBC stand for "Red Blood Cells".
Q109. What are the applications of Convex Mirrors?
Ans. Convex Mirrors are used in vehicles to observe the rear view of objects. They are used as security mirrors in shops. They are also used as blind corner mirrors on roads especially in mountains.
Q110. What is Bio Chemistry?
Ans. Bio Chemistry is the study of all substances and processes found in the living things.
Q111. What is the fundamental unit of mass?
Ans. The fundamental unit of mass is Kilogram.
Q112. What is the mass per unit volume called?
Ans. The mass per unit volume is called Density.
Q113. What is that branch of science, which deals the composition and properties of matter?
Ans. Chemistry is that branch of science, which deals the composition and properties of matter.
Q114. What is the unit of electric current?
Ans. Ampere is the unit of current.
Q115. What are the units obtained from the fundamental units called?
Ans. The units obtained from the fundamental units are called Derived Units.
Q116. Who invented X-Ray?
Ans. William Rontgen invented X-Ray in 1895.
Q117. Who invented LCD?
Ans. George H. Heilmeier invented LCD in 1888.
Q118. From which language the word Chemistry has been derived?
Ans. The word Chemistry has been derived from Egyptian word "Kheem".
Q119. What is the practical form of chemistry called?
Ans. The practical form of chemistry is called Technology.
Q120. What is the fundamental unit of length?
Ans. The fundamental unit of length is "Meter".
Q121. What are the applications of Concave Mirrors?
Ans. Thy are used by doctors to examine throat,eyes, ears and nose. They are also used in telescope and as a cosmetic mirror.
Q122. What is reflection of light?
Ans. When light enters from one medium into another, it bends slightly from its original path, this bending is called reflection of light.
Q123. What are the primary colours of light?
Ans. Red,Green and Blue.
Q124. What are secondary colours of light?
Ans. The colours produced by mixing any two primary colours are called secondary colours, for example: Yellow, magenta and cyan.
Q125. What is the fundamental unit of Temperature?
Ans. The fundamental unit of Temperature is Kelvin.
Q126. Which planet has most oxygen?
Ans. Mercury has the largest percentage of oxygen.
Q127. What are the component colours of white light?
Ans. The component colours of white light are: Red, Orange, Yellow, Green, Blue, Indigo and Violet.
Q128. What is the colour of an object?
Ans. The colour of an object is the colour of light it reflects.
Q129. How many colours are there in Rainbow?
Ans. There are seven colours in Rainbow.
Q130. What is Storage Device in a computer?
Ans. Storage Device is a computer hardware equipment that is used for storing, porting or extracting data.
Q131. What are the three basic types of data storage devices of the computer?
Ans. The three basic data storage devices of the computer are: primary storage device, secondary storage device and tertiary storage device.
Q132. How a Rainbow is produced?
Ans. A Rainbow is produced by the dispersion of sunlight by tiny rain drops suspended in the air, which act like many small prisms.
Q133. What is dispersion of light?
Ans. The phenomenon of splitting up white light into its component colours is called dispersion of light.
Q134. What is the fundamental unit of Light Intensity?
Ans. The fundamental unit of Light Intensity is Candela.
Q135. What is spectrum of light?
Ans. The band of seven colours obtained is called spectrum of light.
Q136. Which colour appearing on the upper side of the Rainbow
Ans. Red Colour.
Q137. Which colour appear on the lower side of the Rainbow?
Ans. Violet Colour.
Q138. Who invented Automobile?
Ans. Karl Benz invented Automobile in 1885.
Q139. Who invented Transformer?
Ans. Michael Faraday invented Transformer in 1885.
Q140. Why a red car appears red?
Ans. A red car appears red because it reflects red colour of light and absorbs the other colours of white light.
Q141. How many Moons does Saturn have?
Ans. Saturn has 82 Moons.
Q142. What is sound in physics?
Ans. Sound is a vibration, carried in the form of waves through transmission medium such as gas, liquid or solid.
Q143. What is the speed of sound in dry air at 0°C.
Ans. 322m/S.
Q144. What is volume?
Ans. The The space occupied by a body is called Volume.
Q145. What is the speed of sound in dry air at 20°C?
Ans. 344m/S.
Q146. What is the speed of sound in steel at 20°C?
Ans. 5130m/S.
Q147. What is the speed of sound in glass at 20°C?
Ans. 3962m/S.
Q148. What are sound waves?
Ans. Sounds are produced by vibrating objects and carried in the form of waves, which are called Sound Waves.
Q149. What is Matter?
Ans. Anything that has weight and occupy space is called Matter.
Q150. What are longitudinal Waves?
Ans. A wave in which the particles of the medium vibrate back and forth parallel to the direction of motion of wave is called longitudinal wave.
Q151. What is Infra Sound?
Ans. A sound of frequency less than 20Hz, is called Infra Sound.
Q152. What is Ultra Sound?
Ans. A sound of frequency more than 20,000Hz, is called Ultra Sound.
Q153. What planet is the closest to the sun?
Ans. Mercury.
Q154. What is primary storage device?
Ans. Primary Storage Device is a computer hardware equipment which is used to hold memory for short period of time while the computer is running. For example RAM and ROM.
Q155. What is Pressure?
Ans. The force acting on a unit area in called Pressure.
Q156. Which juice the stomach walls secrete?
Ans. The walls of the stomach secrete the juice, called gastric juice.
Q157. What is the frequency range of hearing in humans?
Ans. 20Hz to 20,000Hz.
Q158. What is the mass per unit volume called?
Ans. The mass per unit volume is called Density.
Q159. Who invented electricity?
Ans. Benjamin Franklin invented electricity in 1759.
Q160. Who invented Watch?
Ans. Peter Henlein.
