Physics: Waves and Oscillations
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Questions and Answers

What is the primary reason for the time gap between seeing the light and hearing the thunder from a lightning strike?

  • The speed of sound is slower than the speed of light
  • The speed of light and sound are equal
  • The speed of light is much faster than the speed of sound (correct)
  • The speed of light is slower than the speed of sound

    • What is the approximate speed of sound in air at 0°C?

  • 330 m s-1 (correct)
  • 200 m s-1
  • 400 m s-1
  • 500 m s-1

    • What is the primary characteristic of sound waves that allows us to distinguish between different sounds?

  • Sound characteristics (correct)
  • Speed
  • Amplitude
  • Frequency

    • What is the approximate speed of sound in water?

    <p>1400 m s-1</p> Signup and view all the answers

    What is the approximate speed of sound through a steel rod?

    <p>5000 m s-1</p> Signup and view all the answers

    What type of wave is characterized by its speed and frequency?

    <p>Mechanical wave</p> Signup and view all the answers

    What is the direction of particle movement in transverse waves?

    <p>Perpendicular to the direction of wave propagation</p> Signup and view all the answers

    Which type of wave propagates through solids, liquids, and gases?

    <p>Longitudinal wave</p> Signup and view all the answers

    What type of wave propagates in the same direction as the particle motion?

    <p>Longitudinal wave</p> Signup and view all the answers

    What is the characteristic of a sinusoidal wave?

    <p>Simple variation with time and distance</p> Signup and view all the answers

    What is the term for the motion of a particle from time t0 to t4 in a wave?

    <p>One oscillation</p> Signup and view all the answers

    Which characteristic of sound depends on the frequency of the wave?

    <p>Pitch</p> Signup and view all the answers

    What is an example of a longitudinal wave?

    <p>Sound wave</p> Signup and view all the answers

    What is the term for the number of oscillations of a single particle in one second?

    <p>Frequency</p> Signup and view all the answers

    What is the direction of particle movement in longitudinal waves?

    <p>Parallel to the direction of wave propagation</p> Signup and view all the answers

    What type of wave requires a material medium for propagation?

    <p>Sound wave</p> Signup and view all the answers

    What is the term for sounds with frequencies below 20 Hz?

    <p>Infrasound</p> Signup and view all the answers

    What determines the quality of a sound?

    <p>Shape of the wave form</p> Signup and view all the answers

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