Science, General knowledge.
Q 1. One way of transfer of heat energy is 'convection' which occurs in ?
A. Liquids only
B. Gasses only
*C. Liquids and gasses*
D. Liquids, gasses and solids
Q 2. Which from the following is incompressible?
A. Solids
*B. Liquids*
C. Gasses
D. All are compressible
Q 3. The key factor in determining the weather is the quantity of in the atmosphere.
*A. Water vapour*
B. Oxygen
C. Carbondioxide
Q 4. The entropy of the universe is
*A. Increasing*
B. Decreasing
C. Constant
Q 5. Which from the following methods of heat transfer can take place in a vaccum?
A. Canduction
B. Convection
*C. Radiation*
D. All
Q 6. Neutrons were discovered by
A. Einstein
*B. James Chadwick*
C. F.W. Aston
D. Rutherford
Q 7. Mass Spectrograph was invented by
A. Einstein
B. James Chadwick
*C. F.W. Aston*
Q 8. Nucleus was discovered by
A. Einstein
B. James Chadwick
C. F.W. Aston
*D. Rutherford*
Q 9. Which is the process of science?
A. Observation > Experiments > Hypothesis
B. Hypothesis > Observations > Experiments
*C. Observation > Hypothesis > Experiments
D. Experiments >* Observations > Hypothesis.
Q 10. Salty water can be made pure by the method of ?
A. filtration
B. evaporation
C. chromatography
*D. Distillation.*
Q 11. The unit of efficiency is ?
A. Volt
B. Watt
C. Joules
*D. None of these.*
Q 12. Which from the following is NOT a stored energy?
*A. Thermal*
B. Gravitational
C. Elastic potential energy
D. Chemical.
Q 13. Energy can be converted from one form to another, but all energy ends up as
A. Kinetic energy
B. Potential energy
*C. Heat energy*
D. Chemical energy.
Q 14. A battery converts.
A. Potential energy
*B. Chemical energy*
C. Nuclear energy
D. Mechanical energy.
Q 15. Which from the following is NOT a renewable energy resource?
A. Geothermal
B. Biomass
C. Solar
*D. Nuclear.*
Q 16. Which from the following is NOT a non- renewable energy resource?
A. Coal
B. Natural gas
C. Nuclear
*D. Geothermal.*
Q 17. Current is the flow of
*A. Electrons*
B. Protons
C. Neutrons.
Q 18. The unit of current is
A. Volt
*B. Ampere*
C. Ohm
D. Watt into electrical energy.
Q 19. To prevent electric shocks, a/an is placed in the circuit.
A. Amneter
B. Voltmeter
*C. Fuse*
D. Diode.
Q 20. Electrons were discovered by
A. James Chadwick
*B. J.J. Thomson*
C. F.W. Aston
D. Rutherford
Q 21. When molten rock cools and solidifies, the formed.
*A. igneous rocks*
B. satimantary rocks
C. metamorphet rocks.
Q 22. Molten rock below the surface of the Earth is called?
A. Lava
*B. Magma*
C. Crystals
D. Granite.
Q 23. Molten rock above the surface of the Earth is called?
*A. Lava*
B. Magma
C. Crystals.
Q 24. The metal which is liquid at room temperature is?
A. Zine
B. Nickle
C. Lead
*D. Mercury.*
Q 25. Between the melting point and boiling point of a substance, the substance is a?
A. Solid
*B. Liquid*
C. Gas
D. Crystal.
Q 26. The boiling point of alcohol is
*A. 78 °C*
B. 86°c
C. 94 °C.
Q 27. The visible cloud of dust and gas in space is:
A. White Dwarf
*B. Supernova*
C. Nebula.
Q 28. The average salinity of the Earth's oceans in 1 kilogram of sea water is about_____g of salt.
A. 90
B. 25
C. 30
*D. 35* .
Q 29. The most abundant substance that constitutes the mass of the Earth is?
*A. Iron*
B. Oxygen
C. Nitrogen
D. Silicon.
30. The Earth's atmosphere is divided into______ main layers.
A. 4
*B. 5*
C. 6
D. 7.
Q 31. Rocks which are formed by high temperature and pressure on existing rocks over a period of time are called ____ rocks.
A. igneous
*B. metamorphic*
C. sedimentary
D. crystal.
Q 32. Marble and slate are examples of ?
A. igneous rocks
B. metamorphic rocks
*C. sedimentary rocks*
D. crystals main rocks.
Q 33. Sandstone and limestone are examples of
A. igneous rocks
B. metamorphic rocks
*C. sedimentary rocks*
D. crystals.
Q 34. Absolute zero, which is the lower limit of the thermodynamic temperature scale, is equivalent to ____on the celsius scale.
*A. -273 "C*
B. O °c
C. 100 °c.
Q 35. The diameter of the Earth's equator is larger than the pole-to-pole diameter by.
A. 40 km
*B. 43 km*
C. 46 km
D. 49 km.
Q 36. The Tectonic Plates of the Earth lies in .
A. Inner Core
B. Outer Core
*C. Lithosphere*
D. Asthenosphere.
Q 37.There are ______major tectonie plates.
A. 4
B. 5
C. 6
*D. 7* .
Q 38. The fresh water on the Earth is_____ of the total water.
*A. 2.5%*
B. 5%
C. 7.5%
D. 10%.
Q 39. The Ozone Layer lies in the.
A. troposphere
*B. stratosphere*
C. mesosphere
D. thermosphere.
Q 40. The Earth's atmosphere is divided into_____ layers.
A. 4
*B. 5*
C. 6
D. 7.
Q 41. Which type of rock may contain fossils?
A. Igneous
B. Metamorphic
*C. Sedimentary*
D. Crystals.
Q 42. The mass is highly concentrated form of
A. Weight
*B. Energy*
C. Force
D. Momentum.
Q 43. The whole Earth can be covered by _____ geo stationary satellites. *A. 3*
B. 4
C. 5
D. 6
Q 44. The ozone layer is at height of_____kilometer from the surface of the Earth.
A. 10 to 20
*B. 20 to 30*
C. 30 to 40
D. 40 to 50.
Q 45. The ozone layer was discovered by.
A. F.W. Aston and J.J Thomson
B. Albert Einstein
C. Rutherford
*D. Charles Fabry and Henri Buisson.*
Q 46. The interior structure of the Earth is divided into______ layers.
A. 4
*B. 5*
C. 6
D. 7.
Q 47. We live on the Earth's
A. Inner core
B. Outer core
C. Crust
*D. Mantle.*
Q 48. The thickest layer of the Earth is.
A. Crust.
B. Inner core
C. Outer core
*D. Mantle.*
49. The outermost layer of the Earth is
*A. Crust*
B. Inner mantle
C. Outer mantle.
Q 50. The Earth's crust ranges from______km in depth..
A. 0-5
B. 5-10
*C. 5-70*
D. 10-70
Q 51. The Earth's internal heat mainly comes from.
A. Liquid hydrogen
B. Chemical reactions
*C. Radioactive decay*
D. Molecular kinetic energy.
Q 52. There are different reasons on the Earth because of
A. Rotation of the Earth
B. Revolution of the Earth *C. The Earth's axis is tilted*
D. The Earth's distance from the Sun.
Q 53. On average, Air contains_______% of water vapour. km.
*A. 1*
B. 3
C. 5
D. 7.
Q 54.Earth's troposphere extends from the Earth's surface to an average height of about_____km.
A. 10
*B. 12*
C. 15
D. 17
Q 55. The science of lightning is called
A. Aerology
B. Meteorology
C. Electeorology
*D. Fulminology*
Q 56. Ships use_____ to find the depth of the ocean beneath them.
A. Pictches.
*B. Echoes*
C. Frequencies
D. None of these.
Q 57. Molecules with identical molecular formulae but with different structural formulae are called
*A. Isomers*
B. Isotopes
C. Atomic number
D. Mass number.
Q 58. The anode is the electrode connected to the_______ terminal of a battery.
*A. Positive*
B. Negative
C. Neutral
D. Free.
Q 59. The unit used to measure humidity is ?
A. Barometer
B. Hydrometer
*C. Hygrometer*
D. Galvanometer.
Q 60. Laser was invented by.
A. Volta
B. Sturgeon
C. Hero
*D. Maiman.*
Q 61. The vernier calipers is used to measure.
*A. Length*
B. Time
C. Temperature
D. Viscority.
Q 62. Atomic clock is used to measure _____intervals
*A. Very shortof time.*
B. Short
C. Very long
D. Long.
Q 63. 1 tonne =Kg?
A. 100
B. 400
*C. 1000*
D. 4000.
Q 64. An instrument used to measure atmospheric pressure is?
A. Ammeter
B. Manometer
C. Galvanometer
*D. Barometer.*
Q 65. An instrument used to measure gas pressure is ?
A. Ammeter
*B. Manometer*
C. Galvanometer
D. Barometer.
Q 66. Which electromagnetic wave has the longest wavelength?
A. Gamma rays
B. X-rays
C. Microwaves
*D. Radio waves*
Q 67. Which electromagnetic wave has the shortest wavelength?
*A. Gamma rays*
B. X-rays
C. Microwaves
D. Radio waves.
Q 68. All electromagnetic waves have the same .
A. Frequency
B. Amplitude
C. Wavelength in vaccum *D. Speed in vaccum.*
Q 69. The reflection of sound is called
A. Frequency
B. Vibration
*C. Echo*
D. Wave.
Q 70. An instrument used to measure electric current:
*A. Ammeter*
B. Barometer
C. Galvanometer.
Q 71. The SI unit of thermodynamic temperature is.
A. Celsius
B. Fahrenheight
*C. Kelvin*
D. None of these.
Q 72. The shortest distance between crest to crest is:
A. Phare
B. thoughs
C. Amplitude
*D. Wavelength.*
Q 73. The speed of sound is fastest in.
*A. Solids*
B. Liquids
C. Gasses
D. Vaccum.
Q 74. The speed of sound is slowest in ?
A. Solids
B. Liquids
*C. Gasses.*
Q 75. Radioactivity was discovered by.
*A. Henri Becquerel*
B. Pierre Curie
C. Marie Curie
D. Rutherford.
Q 76. Which from the following has the greatest ionising power?
*A. Alpha particles.*
B. Beta particles.
C. Gamma rays
D. All three has same ionising power.
Q 77. Which from the following has the greatest penetrating power?
A. Alpha particles
B. Beta particles
*C. Gamma rays*
D. All three have same penetrating power.
Q 78. Which from the following has the greatest speed?
A. Alpha
B. Beta
*C. Gamma*
D. None
Q 79. At night.
*A. The land cools faster than the water in the sea.*
B. The water in the sea cools faster than the land.
C. The land and the water in sea cools together
D. None of these.
Q 80. The chemical name of chalk is?
A. Sodium nitrate
B. Zine sulfate
C. Sulphuric acid
*D. Calcium carbonate* .
Q 81. The branch of science which study the interaction between matter and radian energy is:
A. Thermochemistry
B. Polymer chemistry
*C. Spectroscopy*
D. Electrochemistry.
Q 82. The horizontal rows of the periodic table are:
A. Groups
*B. Periods*
C. Sets
D. Matrices.
Q 83. The vertical coloumns of the periodie table are
*A. Groups*
B. Periods
C. Sets
D. Matrices.
Q 84. Which metallic element is liquid at room temperature?
A. Zine
B. Nickel
C. Lead
*D. Mercury.*
Q 85. Which non-metallic element is liquid at room temperature?
*A. Bromine*
B. Flourine
C. Chlorine
D. Phosphorous.
Q 86. Battery charger converts electrical energy into energy.
A. Kinetic
B. Potential
*C. Chemical*
D. Nuclear.
Q 87. A loudspeaker changes_______ energy into sound energy.
A. Chemical
*B. Electrical*
C. Light
D. Kinetic.
Q 88. The strongest part(s) of a magnet is/are
A. North pole
B. South pole
*C. North and south pole*
D. Median of north and south pole.
Q 89. Electromagnetic induction was discovered by.
A. Carnot
B. Volta
*C. Faraday*
D. Bessel
Q 90. Battery was invented by
A. Carnot
*B. Volta*
C. Faraday
D. Bessel.
Q 91. The most abundant form of matter in the universe is ?
A. Solid
B. Liquid
C. Gas
*D. Plasma.*
Q 92. When gas is ionized_____forms.
A. Molecule
B. Element
*C. Plasma*
D. Current.
93. Wind is caused by
*A. Difference in atmospheric pressure*
B. Difference in atmospheric temperature C. Rotation of the Earth D. Revolution of the Earth
Q 94. Wind speed is measured by
*A. Anemometer*
B. Barometer
C. Ceilometer
D. Galvanometer.
Q 95. The fact that universe is expanding was discovered by.
A. Hahn
*B. Hubble*
C. Rontgen
D. Rutherford.
Q 96. X-rays were discovered by.
A. Hahn
B. Hubble
*C. Rontgen*
D. Rutherford.
Q 97. The Nobel prize in physics for the discovery of the law of photoelectric effect was awarded to.
A. Newton
*B. Einstein*
C. Rontgen
D. Rutherford.
Q 98. The symbol of gold is
*A. Au*
B. Ag
C. Fe
D. Sg.
Q 99. Plaster of Paris is produced by heating.
A. Graphite
*B. Gypsum*
C. Zine
D. Lead.
Q 100. Which from the following is NOT true about Helium gas.?
A. Colourless
B. Odorless
C. Tasteless
*D. Toxic.*
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