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Test

Physics: 2.3 & 2.4 & 2.5

chloe.halliwell 15 preguntas

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Preguntas del test (15)

  1. 1Sound waves need a medium to travel through
    1. AVerdadero
    2. BFalso
  2. 2Electromagnetic waves need a medium to travel through
    1. AVerdadero
    2. BFalso
  3. 3What is the human hearing range?
    1. A200-200'000
    2. B20-20'000 Hz
    3. C20-200'000 Hz
    4. D20-20'000
  4. 4The pitch is determined by the:
    1. AFrequency
    2. BAmplitude
    3. CWavelength
  5. 5Loudness is determined by the:
    1. AWave speed
    2. BWavelength
    3. CAmplitude
  6. 6Sound waves can not be reflected and diffracted
    1. AVerdadero
    2. BFalso
  7. 7Ultrasound is sound energy with a frequency higher than the upper limit of hearing for humans
    1. AVerdadero
    2. BFalso
  8. 8What are some uses of ultrasound in medicine?
    1. ACT scanning
    2. BPre-natal scanning
    3. CRemoval of kidney stones
    4. DTo scan for broken bones
  9. 9When waves are reflected, the angle of incidence = ?
    1. AThe angle of reflection
    2. BThe angle of refraction
  10. 10The normal is a construction line:
    1. ADiagonal to the reflecting surface
    2. BParallel to the reflecting surface
    3. CPerpendicular to the reflecting surface

Información

Descripción
Test sobre Physics: 2.3 & 2.4 & 2.5, creado por chloe.halliwell el 04/06/2014.
Idioma
English
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12
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