Sound is Produced by a Vibrating Body

  1. Q1: What is the back-and-forth motion that produces sound called?
    Answer: Vibration
    Explanation: Sound is produced by the vibration of objects—this to-and-fro motion is key to creating sound.
  2. Q2: What is produced when a ruler is plucked while partly hanging off a table?
    Answer: Sound
    Explanation: When plucked, the ruler vibrates and produces sound.
  3. Q3: What part of a tabla or drum vibrates to produce sound?
    Answer: Membrane
    Explanation: The stretched membrane on such instruments vibrates when struck, creating sound.
  4. Q4: What kind of energy is carried by vibrations in air?
    Answer: Sound
    Explanation: Vibrating bodies create sound energy, which travels through air to our ears.
  5. Q5: What instrument produces sound when its strings are plucked?
    Answer: Guitar
    Explanation: A guitar produces sound when its strings vibrate after being plucked.
  6. Q6: What is essential for sound to be produced—motion or stillness?
    Answer: Motion
    Explanation: Vibratory motion is essential to produce sound; a still object cannot generate it.
  7. Q7: What is observed in a tuning fork when it is hit and produces sound?
    Answer: Vibration
    Explanation: A struck tuning fork vibrates and produces sound that we can hear.
  8. Q8: What do you feel if you place a hand on a ringing bell?
    Answer: Vibration
    Explanation: The bell vibrates while producing sound, and this vibration can be felt by touch.
  9. Q9: What causes the air column in a flute to produce sound?
    Answer: Vibration
    Explanation: Blowing air into a flute causes the air column inside it to vibrate, producing sound.
  10. Q10: What do vocal cords do to produce sound in humans?
    Answer: Vibrate
    Explanation: The vocal cords vibrate when air passes through them, producing sound in our throat.

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