9th Class Science Sample Paper

done Science Olympiad Model Test Paper-12 Total Questions - 40    [Download]

• question_answer1)
  Which one of the following statements is correct about liquid?
  A)
  Liquid has fixed shape but not fixed volume
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  B)
  Liquid has fixed volume but not fixed shape
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  C)
  Liquid has neither fixed shape nor fixed volume
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  D)
  Liquid has both fixed shape and fixed volume
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  E)
  None of these
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• question_answer2)
  One molecule of water is made up of:
  A)
  One atom of hydrogen and one atom of oxygen
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  B)
  Two atoms of hydrogen and two atoms of oxygen
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  C)
  One atom of hydrogen and two atoms of oxygen
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  D)
  Two atoms of hydrogen and one atom of oxygen
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  E)
  None of these
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• question_answer3)
  What is the atomic number of calcium?
  A)
  17
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  B)
  18
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  C)
  19
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  D)
  20
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  E)
  None of these
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• question_answer4)
  The rate of change of velocity of a body with respect to time is called its:
  A)
  Motion
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  B)
  Acceleration
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  C)
  Velocity
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  D)
  Momentum
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  E)
  None of these
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• question_answer5)
  An atom contains 7 protons and 8 neutrons. Find the mass number of the atom.
  A)
  15
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  B)
  7
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  C)
  8
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  D)
  1
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  E)
  None of these
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• question_answer6)
  A body does 72 joules of work in 12 seconds. What is its power?
  A)
  6 W
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  B)
  5 W
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  C)
  4 W
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  D)
  3 W
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  E)
  None of these
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• question_answer7)
  Which one of the following subatomic particles has mass equal to that of a hydrogen atom and carrying one unit positive charge?
  A)
  Electron
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  B)
  Proton
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  C)
  Neutron
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  D)
  All of these
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  E)
  None of these
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• question_answer8)
  Which one of the following energy shell is nearest to the nucleus?
  A)
  K
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  B)
  L
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  C)
  M
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  D)
  N
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  E)
  None of these
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• question_answer9)
  Which one of the following substances undergo sublimation on heating?
  A)
  Naphthalene
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  B)
  Camphor
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  C)
  Iodine
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  D)
  All of these
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  E)
  None of these
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• question_answer10)
  What is the acceleration produced by a force of 15 N exerted on an object of mass 3 kg?
  A)
  \[5\,\,m/{{s}^{2}}\]
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  B)
  \[6\,\,m/{{s}^{2}}\]
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  C)
  \[7\,\,m/{{s}^{2}}\]
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  D)
  \[8\,\,m/{{s}^{2}}\]
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  E)
  None of these
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• question_answer11)
  Calculate the mass of carbon dioxide which contains the same number of molecules as are contained in 40 g of oxygen?
  A)
  30 g     
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  B)
  35 g
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  C)
  45 g     
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  D)
  55 g
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  E)
  None of these
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• question_answer12)
  30 mL of ethanol is present in 180 mL of its aqueous solution. What is the concentration of the solution?
  A)
  16.67%
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  B)
  17.67%
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  C)
  18.67%
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  D)
  19.67%
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  E)
  None of these
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• question_answer13)

  Which one of the following statements is correct?

  Statement 1: Cathode rays are deflected by a magnetic field.

  Statement 2: Cathode rays produce X-rays on striking metal targets.

  A)
  Statement 1
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  B)
  Statement 2
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  C)
  Both statements are correct
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  D)
  Both statements are incorrect
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  E)
  None of these
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• question_answer14)
  The given cell organelle is also known as powerhouse of the cell. Identify it.
  A)
  It is a ribosome
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  B)
  It is a mitochondrion
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  C)
  It is a centrosome
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  D)
  It is a golgi body
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  E)
  None of these
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• question_answer15)
  Which one of the following cell organelles is found in only plant cells?
  A)
  Ribosomes
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  B)
  Plastids
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  C)
  Lysosomes
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  D)
  Golgi body
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  E)
  None of these
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• question_answer16)
  Which one of the following is a permanent tissue?
  A)
  Xylem
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  B)
  Phloem
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  C)
  Apical meristem
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  D)
  Both A and B
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  E)
  None of these
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• question_answer17)
  Scientific name of mango tree is magnifera indica. It means:
  A)
  Mango tree belongs to the genus magnifera
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  B)
  Mango tree belongs to the species magnifera
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  C)
  Mango tree belongs to the phylum magnifera
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  D)
  Mango tree belongs to the class magnifera
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  E)
  None of these
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• question_answer18)
  Planaria belongs to which one of the following phyla?
  A)
  Platyhelminthes
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  B)
  Annelida
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  C)
  Arthropoda
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  D)
  Nematoda
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  E)
  None of these
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• question_answer19)
  The following given animal belongs to which one of the following phyla?
  A)
  Annelida
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  B)
  Arthropoda
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  C)
  Nematoda
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  D)
  Mollusca
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  E)
  None of these
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• question_answer20)
  Look at the following figure. A person moves from point A to point C. Find his displacement.
  A)
  5 km    
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  B)
  9 km
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  C)
  7 km    
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  D)
  10.5 km
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  E)
  None of these
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• question_answer21)
  A car accelerates uniformly from \[5\,\,m{{s}^{-1}}\,\,to\,\,10\,\,m{{s}^{-1}}\] in 15 s. Calculate the acceleration.
  A)
  \[0.23\,\,m{{s}^{-2}}\]
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  B)
  \[0.33\,\,m{{s}^{-2}}\]
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  C)
  \[0.45\,\,m{{s}^{-2}}\]
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  D)
  \[0.56\,\,m{{s}^{-2}}\]
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  E)
  None of these
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• question_answer22)
  What force would be needed to produce an acceleration of \[6\text{ }m/{{s}^{2}}\]in a ball of mass 8 kg, if the ball is in rest?
  A)
  46 N    
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  B)
  47 N
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  C)
  48 N    
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  D)
  49 N
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  E)
  None of these
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• question_answer23)
  A gas can be liquefied under the condition of:
  A)
  Low temperature, low pressure
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  B)
  High temperature, low pressure
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  C)
  Low temperature, high pressure
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  D)
  High temperature, high pressure
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  E)
  None of these
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• question_answer24)
  The speed-time graph of an object moving in a fixed direction has been shown in the figure below. The object:
  A)
  Is at rest
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  B)
  Is moving with a constant speed
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  C)
  Is moving with constant velocity
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  D)
  Is moving with constant acceleration
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  E)
  None of these
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• question_answer25)
  Atoms that have the same mass number but different atomic number are called:
  A)
  Isotopes
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  B)
  Isobars
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  C)
  Elements
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  D)
  Molecules
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  E)
  None of these
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• question_answer26)
  Find the kinetic energy of a ball of mass 30 kg moving at a speed of\[10\text{ }m/s\].
  A)
  1500 J
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  B)
  3000 J
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  C)
  4000 J
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  D)
  5000 J
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  E)
  None of these
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• question_answer27)
  S.I. unit of gravitational constant G is:
  A)
  \[N{{m}^{2}}k{{g}^{-2}}\]
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  B)
  \[N{{m}^{2}}k{{g}^{2}}\]
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  C)
  \[Nk{{g}^{-2}}{{m}^{2}}\]
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  D)
  \[k{{g}^{-2}}{{N}^{-1}}{{m}^{-2}}\]
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  E)
  None of these
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• question_answer28)
  The frequency of a sound wave is 10 Hz. What is its time period?
  A)
  0.1 second
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  B)
  0.01 second
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  C)
  0.001 second     
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  D)
  1 second
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  E)
  None of these
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• question_answer29)
  A sound wave is travelling in the air with the speed of\[340\text{ }m/s\]. If frequency of the sound wave is 400 hertz find its wavelength.
  A)
  0.68 m
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  B)
  0.70 m
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  C)
  0.72 m
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  D)
  0.85 m
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  E)
  None of these
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• question_answer30)
  The disease syphilis is caused by which one of the following micro-organisms?
  A)
  Virus
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  B)
  Bacteria
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  C)
  Protozoa
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  D)
  Fungi
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  E)
  None of these
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• question_answer31)
  Tendons and ligaments are a kind of:
  A)
  Epithelial tissue
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  B)
  Connective tissue
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  C)
  Nervous tissue
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  D)
  Muscular tissue
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  E)
  None of these
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• question_answer32)
  What is the chemical formula of calcium carbonate?
  A)
  \[CaO\]
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  B)
  \[CaC{{O}_{3}}\]
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  C)
  \[{{O}_{3}}Zn\]
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  D)
  \[CuS{{O}_{4}}\]
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  E)
  None of these
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• question_answer33)
  Growing two or more crops simultaneously in the same field, in a definite row pattern is known as:
  A)
  Intercropping
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  B)
  Mixed cropping
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  C)
  Crop rotation
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  D)
  All of these
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  E)
  None of these
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• question_answer34)
  Calculate the molecular mass of sodium sulphate, \[N{{a}_{2}}S{{O}_{4}}\].
  A)
  130 u
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  B)
  132 u
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  C)
  140 u
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  D)
  142 u
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  E)
  None of these
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• question_answer35)

  Which of the following statements is correct?

  Statement 1: Osteoporosis is a degenerative disease

  Statement 2: Osteoporosis is a deficiency disease

  A)
  Statement 1
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  B)
  Statement 2
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  C)
  Both statements are correct
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  D)
  Both statements are incorrect
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  E)
  None of these
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• question_answer36)
  A 10 kg ball is thrown upward with a speed of\[5\text{ }m/s\]. Find the potential energy of the ball when it reaches the highest point?
  A)
  120 J
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  B)
  100 J
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  C)
  125 J
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  D)
  150 J
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  E)
  None of these
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• question_answer37)
  Sound wave is which one of the following kind of waves?
  A)
  Longitudinal waves        
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  B)
  Transverse waves
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  C)
  Electromagnetic waves
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  D)
  All of these
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  E)
  None of these
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• question_answer38)
  Which of the following is the correct electronic configuration of the xenon gas?
  A)
  2, 8, 18, 8
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  B)
  2, 8, 2, 8, 18, 8, 8
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  C)
  2, 8, 18, 18, 8
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  D)
  2, 8, 18, 8, 18
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  E)
  None of these
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• question_answer39)
  Which one of the following cell organelles has its own DNA and ribosomes?
  A)
  Vacuole
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  B)
  Mitochondria
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  C)
  Lysosome
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  D)
  Golgi apparatus
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  E)
  None of these
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• question_answer40)
  A particle is released from rest from a height. Find the distance it falls through in 2 seconds.
  A)
  4.9 m
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  B)
  19.6 m
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  C)
  44.1 m
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  D)
  78.4 m
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  E)
  None of these
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