Q.1
Sounds which have a very high frequency are called .......
  • Decibles
  • Infra sound
  • Resonance
  • Ultra sound
Q.2
Frequency is measured in .......
  • Hertz
  • Metres
  • Ohms
  • Volts
Q.3
How does decreasing the length of a guitar string change its vibration?
  • Changes the amplitude
  • Decreases frequency
  • Decreases pitch
  • Increases frequency
Q.4
A high frequency of vibrations produces .......
  • High pitched sounds
  • Loud sounds
  • Low pitched sounds
  • Quiet sounds
Q.5
Older people can't hear .......
  • Any better or worse than younger people
  • High pitched sounds as well as younger people
  • Low frequency sounds as well as younger people
  • Low pitched sounds as well as younger people
Q.6
A loudspeaker changes .......
  • Electrical energy to sound energy
  • Potential energy to sound energy
  • Sound energy to electrical energy
  • Sound energy to potential energy
Q.7
How will a thin string on a violin vibrate compared to a thick string?
  • It will vibrate with a greater amplitude
  • It will vibrate with a greater frequency
  • It will vibrate with a smaller amplitude
  • It will vibrate with a smaller frequency
Q.8
A large amplitude of vibration produces .......
  • High pitched sound
  • Loud sounds
  • Low pitched sounds
  • Quiet sounds
Q.9
How will tightening a guitar string change its vibration?
  • It will vibrate with a greater amplitude
  • It will vibrate with a greater frequency
  • It will vibrate with a smaller amplitude
  • It will vibrate with a smaller frequency
Q.10
Sounds cannot travel through .......
  • A gas
  • A liquid
  • A solid
  • A vacuum
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