9th Class Science Matter in Our Surroundings Question Bank

done Matter in our Surroundings Total Questions - 40

• question_answer1)
  A student poured an equal amount of water into \[4\] containers as shown below. What result does this experiment show?
  A)
   Water has definite volume. done clear
  B)
   Water has no definite shape.   done clear
  C)
   Water has definite mass. done clear
  D)
   Water has no definite volume. done clear
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• question_answer2)
  Which of the following has a direct effect on the K.E. of particles?
  A)
   Pressure            done clear
  B)
          Potential energy done clear
  C)
   Temperature        done clear
  D)
          All of the above done clear
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• question_answer3)
  Look at the Venn diagram given below. Which of the following can be placed in\['Z'\]?
  A)
   Water                             done clear
  B)
   Dry ice done clear
  C)
   Salt                  done clear
  D)
          Jelly done clear
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• question_answer4)
  Based on the statements given below choose the correct answer.

  Some sugar can be added to a glassful of water without causing an overflow.

  Liquids have spaces present between the molecules

  A)
   \[P\] and \[Q\] are true and \[Q\] explains \[P\].   done clear
  B)
   \[P\] and \[Q\] are true but \[Q\] does not explain\[P\] done clear
  C)
   Only \[P\] is true. done clear
  D)
   Only \[Q\] is true. done clear
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• question_answer5)
  What happens to a substance when the space between its particles is decreased?
  A)
   The volume of the substance increases. done clear
  B)
   The volume of the substance decreases.   done clear
  C)
   The mass of the substance increases. done clear
  D)
   The mass of the substance decreases. done clear
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• question_answer6)
  Match the entries in Column I with those in Column II.

  	Column-I		Column-II
  [a]	Evaporation	1.	Liquid to gas at a fixed temperature
  [b]	Boiling	2.	Solid to gas
  [c]	Sublimation	3.	Gas to solid
  [d]	Hoar frost	4.	Liquid to gas at any temperature

  A)
   a - 4, b - 1, c - 2, d - 3   done clear
  B)
   a - 1, b - 2, c - 3, d - 4 done clear
  C)
   a - 2, b - 3, c - 4, d - 1 done clear
  D)
   a - 4, b - 1, c - 3, d - 2 done clear
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• question_answer7)
  Which of the following have a regular, repeated molecular pattern and large number of free surfaces in three dimensional space?
  A)
   Solids and liquids done clear
  B)
          Liquids and gases done clear
  C)
   Solids     done clear
  D)
          Gases done clear
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• question_answer8)
  Which of the following is used for determining the mass of a solid?
  A)
   Microscope        done clear
  B)
          Balance   done clear
  C)
   Thermometer done clear
  D)
          Telescope done clear
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• question_answer9)
  Which element has neither a definite shape nor volume?
  A)
   Sodium            done clear
  B)
          Hydrogen   done clear
  C)
   Iodine               done clear
  D)
          Lithium done clear
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• question_answer10)
  Which of the following statements is NOT true?
  A)
   All forms of matter have volume. done clear
  B)
   All forms of matter have colour.   done clear
  C)
   All forms of matter have mass. done clear
  D)
   Matter can be living or non-living. done clear
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• question_answer11)
  Three containers \[X,\,\,Y\] and \[Z\] as shown below were filled with water and then left near an open window. The purpose was to find out whether the exposed surface area of the water affects the rate of evaporation of water. Why was the experiment NOT a fair one?
  A)
   The exposed surface areas were different. done clear
  B)
   Different types of containers were used. done clear
  C)
   The amount of water in the containers was different.   done clear
  D)
   The containers were not covered. done clear
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• question_answer12)
  What happens to the inter-particle attractive forces with an increase in the distance between the particles?
  A)
   They increase. done clear
  B)
   They decrease.   done clear
  C)
   They increase moderately. done clear
  D)
   They remain the same. done clear
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• question_answer13)
  Bromine has a melting point of \[-{{7.2}^{o}}C\] and a boiling point of\[{{59}^{o}}C\]. At what temperature will bromine have a definite volume but no definite shape?
  A)
  \[{{65}^{o}}C\]                       done clear
  B)
  \[{{36}^{o}}C\]   done clear
  C)
  \[-{{26}^{o}}C\]          done clear
  D)
         \[98\,\,K\] done clear
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• question_answer14)
  What happens when a solid melts?
  A)
   Its molecules move farther apart.   done clear
  B)
   Its molecules move closer. done clear
  C)
   The movement of its molecules decreases. done clear
  D)
   The temperature decreases although heat is supplied. done clear
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• question_answer15)
  Calculate the temperature at which both the Celsius and Fahrenheit scales show the same reading?
  A)
  \[40\,\,K\]           done clear
  B)
         \[{{100}^{o}}F\] done clear
  C)
  \[-{{40}^{o}}C\]            done clear
  D)
         \[-{{100}^{o}}C\] done clear
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• question_answer16)
  Why does a gas from a small container when transferred to a larger container occupy all the space available?
  A)
   Gas has no definite mass. done clear
  B)
   Gas has no definite shape. done clear
  C)
   Gas has no definite volume.   done clear
  D)
   Gas has no definite density. done clear
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• question_answer17)
  Which of the following metals is NOT a solid at room temperature?
  A)
   Iron                              done clear
  B)
   Aluminium done clear
  C)
   Mercury                          done clear
  D)
   Steel done clear
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• question_answer18)
  Why can't solids be compressed?
  A)
   The inter-particle attractive forces are very weak. done clear
  B)
   The movement of the constituent particles are not restricted. done clear
  C)
   The constituent particles are closely packed.   done clear
  D)
   None of the above. done clear
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• question_answer19)
  Find the rise in temperature of \[1\,\,kg\] of water if \[1000\,\,J\] of heat is supplied to it.
  A)
  \[{{\left( \frac{1000}{4186} \right)}^{o}}C\]         done clear
  B)
         \[{{\left( \frac{4186}{1000} \right)}^{o}}C\] done clear
  C)
  \[{{(1000\times 4186)}^{o}}C\] done clear
  D)
         \[{{(4186-1000)}^{o}}C\] done clear
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• question_answer20)
  When the vapour pressure of a liquid is equal to the atmospheric pressure, what happens to the liquid?
  A)
   The liquid freezes. done clear
  B)
   The liquid evaporates. done clear
  C)
   The liquid boils.   done clear
  D)
   The liquid does not undergo any change. done clear
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• question_answer21)
  Which of the following water molecules \[W,\,\,X,\,\,Y\] or \[Z\] can easily escape to form water vapour?
  A)
  \[W\]                 done clear
  B)
         \[X\]   done clear
  C)
  \[Y\]                  done clear
  D)
         \[Z\] done clear
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• question_answer22)
  Which of the following statements is TRUE of matter?
  A)
   The states of matter are inter-convertible. done clear
  B)
   Force of attraction varies from one kind of matter to another done clear
  C)
   The states of matter can be changed by changing the temperature or pressure, done clear
  D)
   All of the above   done clear
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• question_answer23)
  Which of the following will diffuse faster than the others?
  A)
   Water               done clear
  B)
          Petrol done clear
  C)
   Perfume              done clear
  D)
          Milk done clear
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• question_answer24)
  Identify the normal temperature of the human body.
  A)
  \[{{40}^{o}}F\]           done clear
  B)
         \[{{40}^{o}}C\] done clear
  C)
  \[{{37}^{o}}C\]             done clear
  D)
         \[{{37}^{o}}F\] done clear
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• question_answer25)
  What is the \[S.I.\] unit of temperature?
  A)
   Centigrade        done clear
  B)
          Fahrenheit done clear
  C)
   Kelvin                 done clear
  D)
          All of the above done clear
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• question_answer26)
  Which of the following processes involve absorption of energy?
  A)
   Only (i) and (ii)   done clear
  B)
          Only (ii) and (iii) done clear
  C)
   Only (i) and (iii) done clear
  D)
          (i), (ii) and (iii) done clear
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• question_answer27)
  When does the thermal energy of a body increase?
  A)
   When the K.E, of the body decreases. done clear
  B)
   When the P.E. of the body increases done clear
  C)
   When the mechanical energy of the body decreases done clear
  D)
   When the K.E. of molecules in a body increases   done clear
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• question_answer28)
  A student finds that as he blows air into a balloon, it becomes bigger. What inference can he make from the above?
  A)
   Air is a gas.       done clear
  B)
          Air has mass done clear
  C)
   Air is matter      done clear
  D)
          Air occupies space   done clear
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• question_answer29)
  What happens when ice is converted into water?
  A)
   Heat is absorbed   done clear
  B)
   Heat is released done clear
  C)
   Temperature increases done clear
  D)
   Temperature decreases done clear
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• question_answer30)
  Identify the freezing point of pure water,
  A)
  \[-{{4}^{o}}C\]            done clear
  B)
         \[{{100}^{o}}C\] done clear
  C)
  \[{{10}^{o}}C\]           done clear
  D)
         \[{{0}^{o}}C\]   done clear
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• question_answer31)
  Under what conditions, can a gas be cooled and converted into liquid?
  A)
   At its critical temperature by decreasing pressure on it done clear
  B)
   Above its critical temperature by increasing pressure on it done clear
  C)
   Above its critical temperature by decreasing pressure on it done clear
  D)
   Below its critical temperature by increasing pressure on it   done clear
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• question_answer32)
  Which of the following substances can be compressed?
  A)
   Sponge               done clear
  B)
          Stone done clear
  C)
   Magnet             done clear
  D)
          Diamond done clear
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• question_answer33)
  A class teacher demonstrates the effect of impurities on the boiling point of water using the arrangement of apparatus as shown below. What could be the probable thermometer readings recorded during the experiment?
  A)
  \[{{97}^{o}}C\]           done clear
  B)
         \[{{100}^{o}}C\] done clear
  C)
  \[{{102}^{o}}C\]           done clear
  D)
         \[{{99}^{o}}C\] done clear
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• question_answer34)
  At what temperature should all the gases occupy zero volume?
  A)
  \[{{0}^{o}}C\]                         done clear
  B)
  \[-{{273}^{o}}C\]   done clear
  C)
  \[{{273}^{o}}C\]         done clear
  D)
         \[{{100}^{o}}C\] done clear
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• question_answer35)
  On which of the following factors/ does the molecular arrangement of a substance depend?
  A)
   Temperature and pressure done clear
  B)
   Concentration and temperature done clear
  C)
   Temperature, pressure and concentration   done clear
  D)
   Volume and pressure done clear
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• question_answer36)
  What does conversion of \[475\,\,K\] into celsius scale give?
  A)
  \[{{301.85}^{o}}C\]                 done clear
  B)
  \[{{273}^{o}}C\] done clear
  C)
  \[{{207}^{o}}C\]         done clear
  D)
         \[{{201.85}^{o}}C\]   done clear
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• question_answer37)
  Which of the following properties is different for solids, liquids and gases?
  A)
   Movement of molecules   done clear
  B)
   Particle size of the substance done clear
  C)
   Mass of the substance done clear
  D)
   Energy changes done clear
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• question_answer38)
  Non-reacting gases have the tendency to mix with each other. What is this phenomenon called?
  A)
   Evaporation      done clear
  B)
   Diffusion   done clear
  C)
   Effusion            done clear
  D)
          Explosion done clear
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• question_answer39)
  The figures given below show the state of molecules of different types of matter. Which figure shows that water is being heated?
  A)
        done clear
  B)
         done clear
  C)
          done clear
  D)
         done clear
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• question_answer40)
  What could be the diameters of the molecules of matter?
  A)
  \[{{10}^{-7}}m\]         done clear
  B)
         \[{{10}^{-11}}m\] done clear
  C)
  \[{{10}^{-9}}m\]           done clear
  D)
         \[{{10}^{-15}}m\] done clear
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