5th Class Science Lights, Sound and Force Question Bank

done Light and Sound Total Questions - 40

• question_answer1)
  In ____ sound waves do not travel.
  A)
  Solids                done clear
  B)
  Liquids done clear
  C)
  Vacuum done clear
  D)
         Gases done clear
  E)
  None of these done clear
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• question_answer2)
  How does a bat find its food?
  A)
  Through the smell of the food. done clear
  B)
  Through its eyes. done clear
  C)
  With the help of sound waves. done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer3)
  Which among the following is correct?
  A)
  Sound do not need a medium to travel. done clear
  B)
  Speed of sound is more than that of light. done clear
  C)
  Sound can travel in air. done clear
  D)
  We can hear a sound produced on moon. done clear
  E)
  None of these done clear
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• question_answer4)
  Light travels in a ____ path.
  A)
  Circular             done clear
  B)
  Triangular done clear
  C)
  Straight done clear
  D)
         Concentric done clear
  E)
  None of these done clear
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• question_answer5)
  In which of the following sound will be produced?
  A)
  When we hit a table with pen. done clear
  B)
  When we beat the drum with stick. done clear
  C)
  When we speak loudly. done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer6)
  Waves which ranges from 20 hz to 20,000 hz:
  A)
  Cannot be heard by human beings. done clear
  B)
  Is hearing range for human beings. done clear
  C)
  Hearing range of bat. done clear
  D)
  Hearing range of dolphins. done clear
  E)
  None of these done clear
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• question_answer7)
  ____ objects gives out light.
  A)
  Luminous          done clear
  B)
  Non-luminous done clear
  C)
  Opaque done clear
  D)
         Transparent done clear
  E)
  None of these done clear
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• question_answer8)
  Band of seven colours obtained through dispersion is called:
  A)
  Reflection                       done clear
  B)
  Refraction done clear
  C)
  Spectrum           done clear
  D)
         Transparency done clear
  E)
  None of these done clear
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• question_answer9)
  Bouncing off light rays after striking a surface is known as ___.
  A)
  Spectrum           done clear
  B)
         Dispersion done clear
  C)
  Reflection           done clear
  D)
         Refraction done clear
  E)
  None of these done clear
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• question_answer10)
  Smoked glass is an example of:
  A)
  Transparent object          done clear
  B)
  Translucent object done clear
  C)
  Opaque object    done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer11)
  Which among the following is not a transparent object?
  A)
  Cellophane                     done clear
  B)
  Glass done clear
  C)
  Frosted glass done clear
  D)
         Diamond done clear
  E)
  None of these done clear
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• question_answer12)
  According to the law of reflection, if angle of incidence is 40° then angle of reflection is:
  A)
  \[30{}^\circ \]                           done clear
  B)
  \[38{}^\circ \] done clear
  C)
  \[40{}^\circ \]               done clear
  D)
  \[50{}^\circ \] done clear
  E)
  None of these done clear
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• question_answer13)
  How many colours are there in white light?
  A)
  5                                  done clear
  B)
  0       done clear
  C)
  7          done clear
  D)
         8 done clear
  E)
  None of these done clear
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• question_answer14)
  Splitting of white light into seven colours on passing through a prism is called:
  A)
  Spectrum                       done clear
  B)
  Dispersion done clear
  C)
  Reflection           done clear
  D)
         Refraction done clear
  E)
  None of these done clear
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• question_answer15)
  A shadow is formed on the ______ side of the light source.
  A)
  Opposite            done clear
  B)
  Both done clear
  C)
  Same                   done clear
  D)
         Either [a] or [b] done clear
  E)
  None of these done clear
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• question_answer16)
  Which among the following is correct?
  A)
  White light is a combination of seven colours. done clear
  B)
  Light always travel in a straight line. done clear
  C)
  Light can travel in vacuum. done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer17)
  Which phenomenon is shown in the given figure.
  A)
  Reflection                       done clear
  B)
  Dispersion done clear
  C)
  Diffused reflection done clear
  D)
         All the above done clear
  E)
  None of these done clear
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• question_answer18)
  In a thunderstorm light reaches first to the earth's surface than sound because:
  A)
  Speed of sound is equal to speed of light. done clear
  B)
  Speed of light is much more than the speed of sound. done clear
  C)
  Speed of sound is more than speed of light. done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer19)
  Which among the following colours is not constituent colour of white light?
  A)
  Violet                            done clear
  B)
  Green      done clear
  C)
  Black                done clear
  D)
         Red done clear
  E)
  None of these done clear
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• question_answer20)
  If we see an image of a flying bird on the surface of water then the reflecting surface is:
  A)
  Water surface     done clear
  B)
  Bird done clear
  C)
  Both [a] and [b] done clear
  D)
         Either [a] or [b] done clear
  E)
  None of these done clear
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• question_answer21)
  When you are wearing a yellow coloured dress then the colour of your shadow will be:
  A)
  Yellow                           done clear
  B)
  Red        done clear
  C)
  Black                done clear
  D)
         Brown done clear
  E)
  None of these done clear
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• question_answer22)
  Shadows are long during:
  A)
  Early morning     done clear
  B)
  Evening done clear
  C)
  Both [a] and [b] done clear
  D)
         Afternoon done clear
  E)
  None of these done clear
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• question_answer23)
  Which type of source of light is needed for a shadow to form?
  A)
  Opaque done clear
  B)
  Transparent done clear
  C)
  Both [a] and [b] done clear
  D)
         Either [a] or [b] done clear
  E)
  None of these done clear
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• question_answer24)
  ???? is formed when opaque object comes in between light source and the screen.
  A)
  Cloud                            done clear
  B)
  Image done clear
  C)
  Shadow      done clear
  D)
         Rainbow done clear
  E)
  None of these done clear
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• question_answer25)
  Water is a ____ object.
  A)
  Translucent object           done clear
  B)
  Transparent object done clear
  C)
  Opaque object done clear
  D)
         Luminous object done clear
  E)
  None of these done clear
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• question_answer26)
  Match the following:

  Column A	Column B
  i. Luminous object	A. Book
  ii. Non-luminous object	B. Burning candle
  iii. Transparent object	C. Butter paper
  iv. Translucent object	D. Glass

  A)
  (i - B), (ii - D), (iii - A), (iv - C) done clear
  B)
  (i - C), (ii - B), (iii - A), (iv - D) done clear
  C)
  (i - D), (ii - C), (iii - A), (iv - B) done clear
  D)
  (i - B), (ii - A), (iii - D), (iv - C) done clear
  E)
  None of these done clear
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• question_answer27)
  Which among the following is required in the formation of a shadow?
  A)
  Source of light done clear
  B)
  Screen on which shadow is formed done clear
  C)
  An opaque object done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer28)
  Which branch of science can tell us about dispersion of light?
  A)
  Zoology             done clear
  B)
  Optics done clear
  C)
  Acoustics           done clear
  D)
         Geology done clear
  E)
  None of these done clear
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• question_answer29)
  Which part of eye acts like a screen, on which image is formed?
  A)
  Cornea              done clear
  B)
  Iris done clear
  C)
  Retina   done clear
  D)
         Lens done clear
  E)
  None of these done clear
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• question_answer30)
  Which one of the following is not an opaque object?
  A)
  Mud                              done clear
  B)
  Wood done clear
  C)
  Ground glass      done clear
  D)
         Mirror done clear
  E)
  None of these done clear
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• question_answer31)
  Which among the following is an opaque object?
  A)
  Wooden screen   done clear
  B)
  Chart paper done clear
  C)
  Sunglasses         done clear
  D)
         Both [a] and [b] done clear
  E)
  None of these done clear
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• question_answer32)
  Which among the following is not correct about image formed by a plane mirror?
  A)
  Size of the object and its image is same. done clear
  B)
  Image is formed behind the mirror. done clear
  C)
  Image formed is inverted. done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer33)
  Which of the following factors affect the speed of sound?
  A)
  Temperature done clear
  B)
  Medium of travelling done clear
  C)
  Humidity done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer34)
  Sound coming from the place where a traffic jam happens?
  A)
  Noise.                done clear
  B)
  Silence done clear
  C)
  Music    done clear
  D)
         Buzz done clear
  E)
  None of these done clear
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• question_answer35)
  Unit of measuring sound is:
  A)
  Newton              done clear
  B)
  Decibel done clear
  C)
  Hertz     done clear
  D)
         Metre done clear
  E)
  None of these done clear
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• question_answer36)
  our _____ helps us to produce sound.
  A)
  skin                               done clear
  B)
  Nose done clear
  C)
  Ear                   done clear
  D)
         Vocal cords done clear
  E)
  None of these done clear
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• question_answer37)
  The branch of science that deals with the study of sound?
  A)
  Biology              done clear
  B)
  Acoustics done clear
  C)
  Optics   done clear
  D)
         Ornithology done clear
  E)
  None of these done clear
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• question_answer38)
  The materials through which some amount of light can pass are called:
  A)
  Opaque materials done clear
  B)
  Transparent materials done clear
  C)
  Translucent materials done clear
  D)
  Luminous materials done clear
  E)
  None of these done clear
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• question_answer39)
  Air blown into a flute produces sound due to:
  A)
  Vacuum produced in the flute      done clear
  B)
  Cooling of air done clear
  C)
  Vibration of air done clear
  D)
  Heating of air done clear
  E)
  None of these done clear
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• question_answer40)
  Loud and unpleasant sound is called ____.
  A)
  Music                done clear
  B)
  Silence done clear
  C)
  Noise     done clear
  D)
         Chirping done clear
  E)
  None of these done clear
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