Gr 10 Physical Sciences Ch 7 SUM: Longitudinal waves
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Questions and Answers

What does the amplitude of a longitudinal wave represent?

  • The distance between two successive compressions
  • The number of wavelengths per second
  • The time taken by the wave to move one wavelength
  • The maximum change in pressure from the equilibrium state (correct)

What is the unit of measurement for frequency?

  • Meters (m)
  • Meters per second (m·s⁻¹)
  • Seconds (s)
  • Hertz (Hz) (correct)

In a longitudinal wave, what is the direction of the particle displacement?

  • In a circular motion
  • Parallel to the direction of the wave's propagation (correct)
  • At an angle to the direction of the wave's propagation
  • Perpendicular to the direction of the wave's propagation

What is the relationship between period and frequency?

<p>They are inversely proportional (D)</p> Signup and view all the answers

What occurs during a compression in a longitudinal wave?

<p>The particles of the medium move closer together (D)</p> Signup and view all the answers

What is the definition of a rarefaction in a longitudinal wave?

<p>A region where the particles of the medium are furthest apart (C)</p> Signup and view all the answers

What is wave speed?

<p>The distance a wave travels per unit time (D)</p> Signup and view all the answers

What is the wavelength of a longitudinal wave?

<p>The distance between two consecutive points that are in phase (D)</p> Signup and view all the answers

What is the formula to calculate the speed of a longitudinal wave?

<p>v = λ / T (C)</p> Signup and view all the answers

What is the wave equation for the speed of a longitudinal wave?

<p>v = λ × f (A)</p> Signup and view all the answers

What represents one complete cycle of a longitudinal wave?

<p>The wavelength of the wave (D)</p> Signup and view all the answers

What is the unit of measurement for wave speed?

<p>Meters per second (m·s⁻¹) (A)</p> Signup and view all the answers

What is the amplitude of a longitudinal wave?

<p>The maximum displacement from equilibrium (D)</p> Signup and view all the answers

What is the relationship between wavelength and frequency in the wave equation?

<p>v = λ × f (D)</p> Signup and view all the answers

What occurs during a rarefaction in a longitudinal wave?

<p>The particles of the medium move further apart (C)</p> Signup and view all the answers

How do compressions and rarefactions travel through the medium in a longitudinal wave?

<p>As alternating regions of high and low pressure (C)</p> Signup and view all the answers

What is the characteristic of particle displacement in a longitudinal wave?

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

What happens to the density and pressure of the medium during a compression?

<p>They increase above average (D)</p> Signup and view all the answers

What is the wavelength in a longitudinal wave?

<p>The distance between two consecutive points that are in phase (C)</p> Signup and view all the answers

What is the maximum displacement from equilibrium in a longitudinal wave?

<p>The amplitude (A)</p> Signup and view all the answers

What is the visual representation of a longitudinal wave?

<p>A slinky spring being pushed and pulled horizontally (A)</p> Signup and view all the answers

What is the characteristic of compressions and rarefactions in a longitudinal wave?

<p>They are alternating regions of high and low pressure (B)</p> Signup and view all the answers

What is the relationship between the wavelength and the amplitude of a longitudinal wave?

<p>They are independent of each other (C)</p> Signup and view all the answers

What is the significance of the wavelength in a longitudinal wave?

<p>It represents one complete cycle of the wave (A)</p> Signup and view all the answers

What is the maximum change in pressure from the equilibrium state in a longitudinal wave?

<p>The amplitude of the wave (B)</p> Signup and view all the answers

What is the time taken by the wave to move one wavelength?

<p>The period of the wave (A)</p> Signup and view all the answers

What is the number of wavelengths per second in a wave?

<p>The frequency of the wave (D)</p> Signup and view all the answers

What is the relationship between the period and frequency of a wave?

<p>They are inversely proportional (B)</p> Signup and view all the answers

What is the distance a wave travels per unit time?

<p>The wave speed (C)</p> Signup and view all the answers

What is the formula to calculate the wave speed in terms of frequency?

<p>v = λf (B)</p> Signup and view all the answers

What is the unit of measurement for the wave speed?

<p>Meters per second (m/s) (A)</p> Signup and view all the answers

What is the result of substituting the equation f = 1/T into the formula v = λ/T?

<p>v = λf (A)</p> Signup and view all the answers

What happens to the density and pressure of the medium during a rarefaction in a longitudinal wave?

<p>They decrease from the average. (A)</p> Signup and view all the answers

What is the characteristic of longitudinal waves that differentiates them from transverse waves?

<p>Particle displacement is parallel to the direction of wave propagation. (D)</p> Signup and view all the answers

How do compressions and rarefactions travel through the medium in a longitudinal wave?

<p>As alternating regions of high and low pressure. (B)</p> Signup and view all the answers

What represents one complete cycle of a longitudinal wave?

<p>The distance between two consecutive compressions. (D)</p> Signup and view all the answers

What is the relationship between the wavelength and the amplitude of a longitudinal wave?

<p>The wavelength and amplitude are independent of each other. (C)</p> Signup and view all the answers

What is the maximum displacement of particles from their equilibrium position in a longitudinal wave?

<p>The amplitude. (D)</p> Signup and view all the answers

What is the visual representation of a longitudinal wave?

<p>A coil-like structure. (B)</p> Signup and view all the answers

How do the particles of the medium move in a longitudinal wave?

<p>Back and forth in the same direction as the wave. (C)</p> Signup and view all the answers

What is the amplitude of a longitudinal wave related to?

<p>The maximum change in pressure from the equilibrium state (C)</p> Signup and view all the answers

What is the period of a wave?

<p>The time taken by the wave to move one wavelength (A)</p> Signup and view all the answers

What is the frequency of a wave?

<p>The number of wavelengths per second (D)</p> Signup and view all the answers

What is the relationship between the period and frequency of a wave?

<p>Frequency is inversely proportional to period (C)</p> Signup and view all the answers

What is the formula to calculate the wave speed in terms of wavelength and frequency?

<p>v = λf (A)</p> Signup and view all the answers

What is the unit of measurement for wave speed?

<p>meters per second (m·s⁻¹) (B)</p> Signup and view all the answers

What is the result of substituting the equation f = 1/T into the formula v = λ/T?

<p>v = λf (B)</p> Signup and view all the answers

What is the distance traveled by a wave during one period?

<p>One wavelength (A)</p> Signup and view all the answers

What is the direction of the medium's displacement in a compression?

<p>Parallel to the wave's propagation (A)</p> Signup and view all the answers

What is the significance of the amplitude in a longitudinal wave?

<p>It represents the maximum displacement from equilibrium (C)</p> Signup and view all the answers

During a rarefaction, what happens to the density and pressure of the medium?

<p>They decrease (B)</p> Signup and view all the answers

What is the characteristic of longitudinal waves that differentiates them from transverse waves?

<p>The particles of the medium move parallel to the wave's propagation (B)</p> Signup and view all the answers

What is the wavelength in a longitudinal wave?

<p>The distance between two consecutive compressions (B)</p> Signup and view all the answers

What is the result of the particles of the medium moving back and forth in the same direction as the wave?

<p>Compressions and rarefactions are formed (C)</p> Signup and view all the answers

What is the visual representation of a longitudinal wave?

<p>A coil spring being pushed and pulled horizontally (C)</p> Signup and view all the answers

What is the relationship between the wavelength and the frequency of a longitudinal wave?

<p>They are directly proportional (B)</p> Signup and view all the answers

What is the effect of increasing the frequency of a longitudinal wave on its amplitude?

<p>The amplitude decreases (C)</p> Signup and view all the answers

If the wavelength of a longitudinal wave is tripled, what is the effect on its speed?

<p>The speed is also tripled (C)</p> Signup and view all the answers

What is the effect of increasing the period of a longitudinal wave on its wavelength?

<p>The wavelength decreases (D)</p> Signup and view all the answers

If the speed of a longitudinal wave is doubled, what is the effect on its frequency?

<p>The frequency is also doubled (B)</p> Signup and view all the answers

What is the relationship between the amplitude and wavelength of a longitudinal wave?

<p>The amplitude is independent of the wavelength (C)</p> Signup and view all the answers

If the wavelength of a longitudinal wave is halved, what is the effect on its period?

<p>The period is also halved (A)</p> Signup and view all the answers

What is the effect of increasing the frequency of a longitudinal wave on its wavelength?

<p>The wavelength decreases (C)</p> Signup and view all the answers

If the amplitude of a longitudinal wave is doubled, what is the effect on its speed?

<p>The speed remains constant (B)</p> Signup and view all the answers

What is the distance traveled by a wave during one period?

<p>One wavelength (C)</p> Signup and view all the answers

What is the significance of the amplitude in a longitudinal wave?

<p>It represents the maximum change in pressure from the equilibrium state (B)</p> Signup and view all the answers

How do the particles of the medium move in a longitudinal wave?

<p>They move parallel to the direction of the wave (D)</p> Signup and view all the answers

What is the result of substituting the equation f = 1/T into the formula v = λ/T?

<p>v = λf (A)</p> Signup and view all the answers

What is the time taken by the wave to move one wavelength?

<p>Period (C)</p> Signup and view all the answers

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